| __ | 1. | 1-4m2 | | A. | a2(3a-1) | | __ | 2. | 2x(n-1)-3y(n-1) | | B. | x3(1-4x) | | __ | 3. | 3a3-a2 | | C. | (a-b)(m+n) | | __ | 4. | 3m-2n-2nx4+3mx4 | | D. | (y2+1)2 | | __ | 5. | 9-b2 | | E. | (n-1)(2x-3y) | | __ | 6. | a2-10a+25 | | F. | (a2-3b)(x2+y2) | | __ | 7. | a2x2-3bx2+a2y2-3by2 | | G. | (1+x4)(3m-2n) | | __ | 8. | m(a-b)+n(a-b) | | H. | (a-5)2 | | __ | 9. | x3-4x4 | | I. | (3-b)(3+b) | | __ | 10. | y4+1+2y2 | | J. | (1-2m)(1+2m) |
| __ | 11. | 2a3-2 | | A. | (5x-2)(x+3) | | __ | 12. | 5x2+13x-6 | | B. | (3x+2)(2x-3) | | __ | 13. | 6x2-6-5x | | C. | (m-n)(m2+mn+n2) | | __ | 14. | a2+4a+3 | | D. | (a-1)(a2+a+1) | | __ | 15. | a2-2a2b2+b4 | | E. | (x+2)(x-1) | | __ | 16. | a3-1 | | F. | (a+3)(a+1) | | __ | 17. | a3-3a2-28a | | G. | (2)(a-1)(a2+a+1) | | __ | 18. | m3-n3 | | H. | (a)(a-7)(a+4) | | __ | 19. | x2+x-2 | | I. | (a+b)2(a-b)2 | | __ | 20. | x5+x3-2x | | J. | (x)(x+1)(x-1)(x2+2) |
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