Multiplication de Trois Binômes (A) 1. (6p 3 + 8p 2 )(7p + 7)(9p 4 + 9p 3 ) 2. (5f 2 + 9f)( 7f 5 4f 4 )(4f 4 2f 3 ) 3. ( 5z 5 5z 4 )( 4z 3 6z 2 )(4z 3 2z 2 ) 4. (2w 3 + 8w 2 )( 4w 4 5w 3 )( 6w 3 6w 2 ) 5. (d 2 + 9d)( d 4 + 4d 3 )( 6d 5 8d 4 ) 6. ( 8p 4 2p 3 )( 3p 4 4p 3 )( 7p 5 4p 4 ) 7. (8w 2 + w)(w 4 4w 3 )(5w 5 + 6w 4 ) 8. (6c 5 2c 4 )( 7c 5 + 3c 4 )(2c 5) 9. ( 3q 3 4q 2 )(9q 3 8q 2 )(3q 4 6q 3 ) 10. ( 7k 5 7k 4 )(4k + 9)(8k 9)
Multiplication de Trois Binômes (A) Réponses 1. (6p 3 + 8p 2 )(7p + 7)(9p 4 + 9p 3 ) = 378p 8 + 1260p 7 + 1386p 6 + 504p 5 2. (5f 2 + 9f)( 7f 5 4f 4 )(4f 4 2f 3 ) = 140f 11 262f 10 + 22f 9 + 72f 8 3. ( 5z 5 5z 4 )( 4z 3 6z 2 )(4z 3 2z 2 ) = 80z 11 + 160z 10 + 20z 9 60z 8 4. (2w 3 + 8w 2 )( 4w 4 5w 3 )( 6w 3 6w 2 ) = 48w 10 + 300w 9 + 492w 8 + 240w 7 5. (d 2 + 9d)( d 4 + 4d 3 )( 6d 5 8d 4 ) = 6d 11 + 38d 10 176d 9 288d 8 6. ( 8p 4 2p 3 )( 3p 4 4p 3 )( 7p 5 4p 4 ) = 168p 13 362p 12 208p 11 32p 10 7. (8w 2 + w)(w 4 4w 3 )(5w 5 + 6w 4 ) = 40w 11 107w 10 206w 9 24w 8 8. (6c 5 2c 4 )( 7c 5 + 3c 4 )(2c 5) = 84c 11 + 274c 10 172c 9 + 30c 8 9. ( 3q 3 4q 2 )(9q 3 8q 2 )(3q 4 6q 3 ) = 81q 10 + 126q 9 + 168q 8 192q 7 10. ( 7k 5 7k 4 )(4k + 9)(8k 9) = 224k 7 476k 6 + 315k 5 + 567k 4
Multiplication de Trois Binômes (B) 1. (2w + 4)( 3w 4 + 2w 3 )(3w 5 + 2w 4 ) 2. (4k 1)( 2k 3 + 5k 2 )( 3k 2 8k) 3. ( w 8)(5w 2 + 5w)(9w 3 2w 2 ) 4. (6p + 4)( 8p 4 9p 3 )(3p + 6) 5. (6p 5 + 6p 4 )(6p 5 + p 4 )(8p 4 9p 3 ) 6. (3b 3 + 7b 2 )( 7b 2 3b)(9b 4 b 3 ) 7. ( 5x 5 + x 4 )(x 5)(8x + 9) 8. (5q 3)(7q 3)(6q 4 + 5q 3 ) 9. ( r + 8)( 2r 4 + 4r 3 )( 6r 3 7r 2 ) 10. (4s 3 5s 2 )(7s 5 + s 4 )(2s + 7)
Multiplication de Trois Binômes (B) Réponses 1. (2w + 4)( 3w 4 + 2w 3 )(3w 5 + 2w 4 ) = 18w 10 36w 9 + 8w 8 + 16w 7 2. (4k 1)( 2k 3 + 5k 2 )( 3k 2 8k) = 24k 6 2k 5 161k 4 + 40k 3 3. ( w 8)(5w 2 + 5w)(9w 3 2w 2 ) = 45w 6 395w 5 270w 4 + 80w 3 4. (6p + 4)( 8p 4 9p 3 )(3p + 6) = 144p 6 546p 5 624p 4 216p 3 5. (6p 5 + 6p 4 )(6p 5 + p 4 )(8p 4 9p 3 ) = 288p 14 + 12p 13 330p 12 54p 11 6. (3b 3 + 7b 2 )( 7b 2 3b)(9b 4 b 3 ) = 189b 9 501b 8 131b 7 + 21b 6 7. ( 5x 5 + x 4 )(x 5)(8x + 9) = 40x 7 + 163x 6 + 194x 5 45x 4 8. (5q 3)(7q 3)(6q 4 + 5q 3 ) = 210q 6 41q 5 126q 4 + 45q 3 9. ( r + 8)( 2r 4 + 4r 3 )( 6r 3 7r 2 ) = 12r 8 + 106r 7 52r 6 224r 5 10. (4s 3 5s 2 )(7s 5 + s 4 )(2s + 7) = 56s 9 + 134s 8 227s 7 35s 6
Multiplication de Trois Binômes (C) 1. (8y 4 2y 3 )( 9y + 9)(y 3 y 2 ) 2. ( 3b 4 3b 3 )(2b 2 6b)( 5b 4 + 7b 3 ) 3. (2h 2 + 7h)(5h 3 + 4h 2 )(5h 4 3h 3 ) 4. (3s 5 + s 4 )( 6s 4 5s 3 )(4s 5 9s 4 ) 5. (3r 2 + 4r)(r 4 + 6r 3 )( 7r 5 + 7r 4 ) 6. (5g 4)(4g 5 9g 4 )( 6g 2 + 7g) 7. (7p 4 8p 3 )(p 4 4p 3 )( 7p + 2) 8. ( 4b 5 5b 4 )( 4b 5 7b 4 )(7b 2 2b) 9. ( 8v 3 + 7v 2 )(3v 2 6v)( 4v 4 5v 3 ) 10. ( 2p 5 8p 4 )( 5p 2 5p)(2p 3 + 3p 2 )
Multiplication de Trois Binômes (C) Réponses 1. (8y 4 2y 3 )( 9y + 9)(y 3 y 2 ) = 72y 8 + 162y 7 108y 6 + 18y 5 2. ( 3b 4 3b 3 )(2b 2 6b)( 5b 4 + 7b 3 ) = 30b 10 102b 9 6b 8 + 126b 7 3. (2h 2 + 7h)(5h 3 + 4h 2 )(5h 4 3h 3 ) = 50h 9 + 185h 8 + 11h 7 84h 6 4. (3s 5 + s 4 )( 6s 4 5s 3 )(4s 5 9s 4 ) = 72s 14 + 78s 13 + 169s 12 + 45s 11 5. (3r 2 + 4r)(r 4 + 6r 3 )( 7r 5 + 7r 4 ) = 21r 11 133r 10 14r 9 + 168r 8 6. (5g 4)(4g 5 9g 4 )( 6g 2 + 7g) = 120g 8 + 506g 7 643g 6 + 252g 5 7. (7p 4 8p 3 )(p 4 4p 3 )( 7p + 2) = 49p 9 + 266p 8 296p 7 + 64p 6 8. ( 4b 5 5b 4 )( 4b 5 7b 4 )(7b 2 2b) = 112b 12 + 304b 11 + 149b 10 70b 9 9. ( 8v 3 + 7v 2 )(3v 2 6v)( 4v 4 5v 3 ) = 96v 9 156v 8 177v 7 + 210v 6 10. ( 2p 5 8p 4 )( 5p 2 5p)(2p 3 + 3p 2 ) = 20p 10 + 130p 9 + 230p 8 + 120p 7
Multiplication de Trois Binômes (D) 1. (5a 4 9a 3 )( 7a 2 + 6a)(9a 5) 2. (3a 5)( 4a 5 3a 4 )( 8a 2 8a) 3. ( 4v 3 9v 2 )(5v 2)( 9v 2 + 7v) 4. ( 7p + 3)( 7p 2 5p)( 4p 5 + 3p 4 ) 5. ( 5v 3 + 6v 2 )(v 2 3v)( 2v 2 + v) 6. ( z 9)(5z 2 + 2z)(3z 3 9z 2 ) 7. ( 8y 2 + 8y)(6y 2 7y)( 8y 4 + 6y 3 ) 8. (p 4 + 3p 3 )(5p 4 + 6p 3 )( 7p 5 7p 4 ) 9. ( 7w 8)(3w 5 6w 4 )(6w + 9) 10. (9t + 3)(t 4 6t 3 )(t 3 8t 2 )
Multiplication de Trois Binômes (D) Réponses 1. (5a 4 9a 3 )( 7a 2 + 6a)(9a 5) = 315a 7 + 1012a 6 951a 5 + 270a 4 2. (3a 5)( 4a 5 3a 4 )( 8a 2 8a) = 96a 8 + 8a 7 208a 6 120a 5 3. ( 4v 3 9v 2 )(5v 2)( 9v 2 + 7v) = 180v 6 + 193v 5 421v 4 + 126v 3 4. ( 7p + 3)( 7p 2 5p)( 4p 5 + 3p 4 ) = 196p 8 + 91p 7 + 102p 6 45p 5 5. ( 5v 3 + 6v 2 )(v 2 3v)( 2v 2 + v) = 10v 7 47v 6 + 57v 5 18v 4 6. ( z 9)(5z 2 + 2z)(3z 3 9z 2 ) = 15z 6 96z 5 + 369z 4 + 162z 3 7. ( 8y 2 + 8y)(6y 2 7y)( 8y 4 + 6y 3 ) = 384y 8 1120y 7 + 1072y 6 336y 5 8. (p 4 + 3p 3 )(5p 4 + 6p 3 )( 7p 5 7p 4 ) = 35p 13 182p 12 273p 11 126p 10 9. ( 7w 8)(3w 5 6w 4 )(6w + 9) = 126w 7 81w 6 + 450w 5 + 432w 4 10. (9t + 3)(t 4 6t 3 )(t 3 8t 2 ) = 9t 8 123t 7 + 390t 6 + 144t 5
Multiplication de Trois Binômes (E) 1. (4b 3 + 7b 2 )(6b 3 4b 2 )( 9b 4 + 4b 3 ) 2. ( 3z 4 z 3 )( z 4 + 7z 3 )( 2z 4 + 3z 3 ) 3. ( 9d 3 3d 2 )(5d 2 + 2d)( 5d 3 2d 2 ) 4. (q 6)(4q 4 + 9q 3 )( 5q 5 8q 4 ) 5. (v 2 + 6v)(9v 5 + 9v 4 )(v 3 + 3v 2 ) 6. ( 2k 5 + 2k 4 )( 9k 2 + 3k)(4k 2 7k) 7. (b 4 + 7b 3 )(4b 2 + b)(2b 2 2b) 8. (7q 5 + 8q 4 )(6q 4 4q 3 )(8q 3 4q 2 ) 9. ( 6s 2 + 5s)(4s 4 2s 3 )( 3s 2 8s) 10. ( r 5 + 3r 4 )(8r + 1)(6r 5)
Multiplication de Trois Binômes (E) Réponses 1. (4b 3 + 7b 2 )(6b 3 4b 2 )( 9b 4 + 4b 3 ) = 216b 10 138b 9 + 356b 8 112b 7 2. ( 3z 4 z 3 )( z 4 + 7z 3 )( 2z 4 + 3z 3 ) = 6z 12 + 49z 11 46z 10 21z 9 3. ( 9d 3 3d 2 )(5d 2 + 2d)( 5d 3 2d 2 ) = 225d 8 + 255d 7 + 96d 6 + 12d 5 4. (q 6)(4q 4 + 9q 3 )( 5q 5 8q 4 ) = 20q 10 + 43q 9 + 390q 8 + 432q 7 5. (v 2 + 6v)(9v 5 + 9v 4 )(v 3 + 3v 2 ) = 9v 10 + 90v 9 + 243v 8 + 162v 7 6. ( 2k 5 + 2k 4 )( 9k 2 + 3k)(4k 2 7k) = 72k 9 222k 8 + 192k 7 42k 6 7. (b 4 + 7b 3 )(4b 2 + b)(2b 2 2b) = 8b 8 + 50b 7 44b 6 14b 5 8. (7q 5 + 8q 4 )(6q 4 4q 3 )(8q 3 4q 2 ) = 336q 12 8q 11 336q 10 + 128q 9 9. ( 6s 2 + 5s)(4s 4 2s 3 )( 3s 2 8s) = 72s 8 + 96s 7 226s 6 + 80s 5 10. ( r 5 + 3r 4 )(8r + 1)(6r 5) = 48r 7 + 178r 6 97r 5 15r 4
Multiplication de Trois Binômes (F) 1. ( 5t + 2)( t 2 3t)( 9t + 7) 2. ( 7f 7)( 8f 4 9f 3 )( 7f 5 + 7f 4 ) 3. ( 5s 4 8s 3 )(7s 3 6s 2 )(8s 5 + 7s 4 ) 4. (9y 2 3y)(6y 4 y 3 )( 6y 7) 5. ( 6v 2 9v)(5v 2 9v)( 4v 2 3v) 6. ( 3r 5 r 4 )(4r 3 + 5r 2 )( 9r 4 2r 3 ) 7. ( 2n 2 2n)(8n 5 + 6n 4 )( 4n 4 6n 3 ) 8. ( 4f + 3)(6f 3 4f 2 )(7f 3) 9. (m + 3)(4m 2 + 3m)( 2m 4 8m 3 ) 10. ( 7x 5 + 6x 4 )(2x 4 + 3x 3 )( 3x 4)
Multiplication de Trois Binômes (F) Réponses 1. ( 5t + 2)( t 2 3t)( 9t + 7) = 45t 4 82t 3 + 145t 2 42t 2. ( 7f 7)( 8f 4 9f 3 )( 7f 5 + 7f 4 ) = 392f 10 441f 9 + 392f 8 + 441f 7 3. ( 5s 4 8s 3 )(7s 3 6s 2 )(8s 5 + 7s 4 ) = 280s 12 453s 11 + 202s 10 + 336s 9 4. (9y 2 3y)(6y 4 y 3 )( 6y 7) = 324y 7 216y 6 + 171y 5 21y 4 5. ( 6v 2 9v)(5v 2 9v)( 4v 2 3v) = 120v 6 + 54v 5 351v 4 243v 3 6. ( 3r 5 r 4 )(4r 3 + 5r 2 )( 9r 4 2r 3 ) = 108r 12 + 195r 11 + 83r 10 + 10r 9 7. ( 2n 2 2n)(8n 5 + 6n 4 )( 4n 4 6n 3 ) = 64n 11 + 208n 10 + 216n 9 + 72n 8 8. ( 4f + 3)(6f 3 4f 2 )(7f 3) = 168f 5 + 310f 4 186f 3 + 36f 2 9. (m + 3)(4m 2 + 3m)( 2m 4 8m 3 ) = 8m 7 62m 6 138m 5 72m 4 10. ( 7x 5 + 6x 4 )(2x 4 + 3x 3 )( 3x 4) = 42x 10 + 83x 9 18x 8 72x 7
Multiplication de Trois Binômes (G) 1. ( 5a 5 9a 4 )(2a 4 + a 3 )(3a 3 + 4a 2 ) 2. (3b 3 + 3b 2 )(6b 3 3b 2 )( 6b 2 2b) 3. (9k 4 6k 3 )(4k 4 + 3k 3 )( 7k 4 + 3k 3 ) 4. ( 6p 2 7p)(2p 2 + 4p)(8p 5 + 5p 4 ) 5. (3s 3 + 5s 2 )( 7s 5 + 2s 4 )(2s 3 + 4s 2 ) 6. (8k 3 8k 2 )(6k 2 7k)(8k 9) 7. (4z 4 + 8z 3 )(8z 3 + 3z 2 )( 2z 4 4z 3 ) 8. (4h + 8)( 9h 4 h 3 )(7h 5 + 7h 4 ) 9. (9t 3 + t 2 )(5t 2 + 8t)( 2t + 3) 10. ( 5h 3 + 9h 2 )( 7h 6)( 3h 5 + 3h 4 )
Multiplication de Trois Binômes (G) Réponses 1. ( 5a 5 9a 4 )(2a 4 + a 3 )(3a 3 + 4a 2 ) = 30a 12 109a 11 119a 10 36a 9 2. (3b 3 + 3b 2 )(6b 3 3b 2 )( 6b 2 2b) = 108b 8 90b 7 + 36b 6 + 18b 5 3. (9k 4 6k 3 )(4k 4 + 3k 3 )( 7k 4 + 3k 3 ) = 252k 12 + 87k 11 + 135k 10 54k 9 4. ( 6p 2 7p)(2p 2 + 4p)(8p 5 + 5p 4 ) = 96p 9 364p 8 414p 7 140p 6 5. (3s 3 + 5s 2 )( 7s 5 + 2s 4 )(2s 3 + 4s 2 ) = 42s 11 142s 10 96s 9 + 40s 8 6. (8k 3 8k 2 )(6k 2 7k)(8k 9) = 384k 6 1264k 5 + 1384k 4 504k 3 7. (4z 4 + 8z 3 )(8z 3 + 3z 2 )( 2z 4 4z 3 ) = 64z 11 280z 10 352z 9 96z 8 8. (4h + 8)( 9h 4 h 3 )(7h 5 + 7h 4 ) = 252h 10 784h 9 588h 8 56h 7 9. (9t 3 + t 2 )(5t 2 + 8t)( 2t + 3) = 90t 6 19t 5 + 215t 4 + 24t 3 10. ( 5h 3 + 9h 2 )( 7h 6)( 3h 5 + 3h 4 ) = 105h 9 + 204h 8 + 63h 7 162h 6
Multiplication de Trois Binômes (H) 1. ( 9g 5)( 9g 4 2g 3 )(9g + 2) 2. ( 5h 5)(3h 3 + 7h 2 )(5h + 7) 3. (4y 2 4y)(2y 4 + 8y 3 )( 8y 4 + 8y 3 ) 4. (6y 5)(8y 9)( 7y 3 y 2 ) 5. (8t 5 + 2t 4 )(7t 4 + 2t 3 )(t 3 + t 2 ) 6. (m 3 3m 2 )( 8m 2 m)(9m 4 + 4m 3 ) 7. ( 4t 4 + 4t 3 )(5t 2 6t)( 9t 4 8t 3 ) 8. ( 3q 3 + q 2 )( 2q 2 + 5q)( 3q + 2) 9. ( 4x 4 + 4x 3 )(5x 4 3x 3 )( x 3 7x 2 ) 10. (8h 3 7h 2 )( 8h 4 5h 3 )( 3h 3 + 5h 2 )
Multiplication de Trois Binômes (H) Réponses 1. ( 9g 5)( 9g 4 2g 3 )(9g + 2) = 729g 6 + 729g 5 + 216g 4 + 20g 3 2. ( 5h 5)(3h 3 + 7h 2 )(5h + 7) = 75h 5 355h 4 525h 3 245h 2 3. (4y 2 4y)(2y 4 + 8y 3 )( 8y 4 + 8y 3 ) = 64y 10 128y 9 + 448y 8 256y 7 4. (6y 5)(8y 9)( 7y 3 y 2 ) = 336y 5 + 610y 4 221y 3 45y 2 5. (8t 5 + 2t 4 )(7t 4 + 2t 3 )(t 3 + t 2 ) = 56t 12 + 86t 11 + 34t 10 + 4t 9 6. (m 3 3m 2 )( 8m 2 m)(9m 4 + 4m 3 ) = 72m 9 + 175m 8 + 119m 7 + 12m 6 7. ( 4t 4 + 4t 3 )(5t 2 6t)( 9t 4 8t 3 ) = 180t 10 236t 9 136t 8 + 192t 7 8. ( 3q 3 + q 2 )( 2q 2 + 5q)( 3q + 2) = 18q 6 + 63q 5 49q 4 + 10q 3 9. ( 4x 4 + 4x 3 )(5x 4 3x 3 )( x 3 7x 2 ) = 20x 11 + 108x 10 212x 9 + 84x 8 10. (8h 3 7h 2 )( 8h 4 5h 3 )( 3h 3 + 5h 2 ) = 192h 10 368h 9 25h 8 + 175h 7
Multiplication de Trois Binômes (I) 1. ( 2c 4 + 3c 3 )( 2c 4 + 5c 3 )(3c 5 c 4 ) 2. ( 3p 5 + 4p 4 )( 2p 3 7p 2 )(4p 5 + 5p 4 ) 3. (8z 2 6z)( 5z 3 9z 2 )(5z 2 3z) 4. (7y 3 6y 2 )( 7y 4 + 7y 3 )( y + 8) 5. ( 3k 3 8k 2 )(k 4)(4k 2 + 2k) 6. (8n 4 n 3 )(7n 2 + 8n)(n 3 7n 2 ) 7. (n 5 + 8n 4 )(7n 2 + 3n)( 9n + 8) 8. (8d 3 + 3d 2 )(8d 4 9d 3 )( 7d 3 + 5d 2 ) 9. (4b 5 + 7b 4 )(b 3 + 2b 2 )(4b 2 + 7b) 10. ( 7p 2 p)(4p 2 + 4p)(6p + 7)
Multiplication de Trois Binômes (I) Réponses 1. ( 2c 4 + 3c 3 )( 2c 4 + 5c 3 )(3c 5 c 4 ) = 12c 13 52c 12 + 61c 11 15c 10 2. ( 3p 5 + 4p 4 )( 2p 3 7p 2 )(4p 5 + 5p 4 ) = 24p 13 + 82p 12 47p 11 140p 10 3. (8z 2 6z)( 5z 3 9z 2 )(5z 2 3z) = 200z 7 90z 6 + 396z 5 162z 4 4. (7y 3 6y 2 )( 7y 4 + 7y 3 )( y + 8) = 49y 8 483y 7 + 770y 6 336y 5 5. ( 3k 3 8k 2 )(k 4)(4k 2 + 2k) = 12k 6 + 10k 5 + 136k 4 + 64k 3 6. (8n 4 n 3 )(7n 2 + 8n)(n 3 7n 2 ) = 56n 9 335n 8 407n 7 + 56n 6 7. (n 5 + 8n 4 )(7n 2 + 3n)( 9n + 8) = 63n 8 475n 7 + 256n 6 + 192n 5 8. (8d 3 + 3d 2 )(8d 4 9d 3 )( 7d 3 + 5d 2 ) = 448d 10 + 656d 9 51d 8 135d 7 9. (4b 5 + 7b 4 )(b 3 + 2b 2 )(4b 2 + 7b) = 16b 10 + 88b 9 + 161b 8 + 98b 7 10. ( 7p 2 p)(4p 2 + 4p)(6p + 7) = 168p 5 388p 4 248p 3 28p 2
Multiplication de Trois Binômes (J) 1. (3d 4 + 7d 3 )(d 2 + 3d)( 4d + 7) 2. (8t 4 + 5t 3 )( 2t + 3)(4t 4 + 4t 3 ) 3. ( 2a 4 + 2a 3 )(8a 4 + 7a 3 )( 3a + 7) 4. ( c 5 3c 4 )( 2c 2 3c)( 6c 2 + 5c) 5. (9m 3 m 2 )( 8m 4 8m 3 )(5m 4 + m 3 ) 6. (8q 4)( 3q 5 8q 4 )( q 2 + 7q) 7. ( 9v + 2)( 5v 2 v)( v 3 4v 2 ) 8. (4c + 3)(4c 5 9c 4 )( 7c 4 + 5c 3 ) 9. ( 5h + 7)(3h 5 9h 4 )(2h + 4) 10. (9n 3 7n 2 )( 4n 5 4n 4 )(2n 1)
Multiplication de Trois Binômes (J) Réponses 1. (3d 4 + 7d 3 )(d 2 + 3d)( 4d + 7) = 12d 7 43d 6 + 28d 5 + 147d 4 2. (8t 4 + 5t 3 )( 2t + 3)(4t 4 + 4t 3 ) = 64t 9 8t 8 + 116t 7 + 60t 6 3. ( 2a 4 + 2a 3 )(8a 4 + 7a 3 )( 3a + 7) = 48a 9 118a 8 28a 7 + 98a 6 4. ( c 5 3c 4 )( 2c 2 3c)( 6c 2 + 5c) = 12c 9 44c 8 9c 7 + 45c 6 5. (9m 3 m 2 )( 8m 4 8m 3 )(5m 4 + m 3 ) = 360m 11 392m 10 24m 9 + 8m 8 6. (8q 4)( 3q 5 8q 4 )( q 2 + 7q) = 24q 8 116q 7 396q 6 + 224q 5 7. ( 9v + 2)( 5v 2 v)( v 3 4v 2 ) = 45v 6 179v 5 + 6v 4 + 8v 3 8. (4c + 3)(4c 5 9c 4 )( 7c 4 + 5c 3 ) = 112c 10 + 248c 9 + 69c 8 135c 7 9. ( 5h + 7)(3h 5 9h 4 )(2h + 4) = 30h 7 + 72h 6 + 138h 5 252h 4 10. (9n 3 7n 2 )( 4n 5 4n 4 )(2n 1) = 72n 9 + 20n 8 + 64n 7 28n 6