-AB ^ 2 + 2A ^ 2b-a ^ 3B factorization

-ab^2+2a^2b-a^3b
=-ab(1-2a+a^2)
=-ab(1-a)^2

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1. Factorization: - AB + 2A ^ 2b-a ^ 3B
2. Factorization factor AB ^ 2-2a ^ 2B + A ^ 3 The square of ab-the square of 2A × the third power of B + 3
3. Decomposition factor: 2a2b-a3-ab2
4. Decomposition factor A ^ 3 + AB ^ 2-2a ^ 2B,
5. Given a + B = 5, ab = 3, find the value of one part of a + one part of B
6. If we know / A / = 5, B = 3 and ab < 0, we can find the value of a + B
7. If AB2 = - 6, then the value of - AB (a2b5-ab3-b) is______ ．
8. Given AB ^ 2 = 6, find AB (AB ^ 3 + A ^ 2B ^ 5-b)
9. If AB ^ 2 = - 6, then - AB (a ^ 2B ^ 5-ab ^ 3-B) =?
10. If a + B = - 5, ab = 6, then the value of B / A + A / B is
11. 1. Decompose factor A ^ 4-3a ^ 2 + 2 in the range of real number 2. Try to prove: no matter m takes any real value, the value of the algebraic formula 3M ^ 2 + 4m + 5 is always greater than zero
12. 3A ^ 2-10 factoring in real numbers
13. (2a + b) (2a-3b) - 3A (2a + b) factorization
14. 2A ^ - 6 factoring in real numbers
15. 3a-5b-2a + B simplification
16. 1. First simplify, then evaluate a - {b-2a + [3a-2 (B + 2a) + 5B]}, where a = 2009, B = 2010 2. Given X & sup2; + xy = 2, Y & sup2; + xy = 5, what is the value of 1 / 2x & sup2; + XY + 1 / 2Y & sup2? 3. If - 0.2A (3x power) B & sup3; and 1 / 2A & sup2; B (y power) are of the same kind, Find the value of the algebraic formula 3xy & sup2; - [2x & sup2; Y-2 (xy-3 / 2XY & sup2;) + XY] + 3x & sup2; y
17. First simplify, then evaluate: (A-1) / a △ {a - (2a-1) / a}, where a = √ 3 + 1 First simplify, then evaluate: (A-1) / a △ {a - (2a-1) / a}, where a = √ 3 + 1
18. Simplify evaluation 3 (a + 1) ^ 2 - (2a + 1) (2a-1), where a = 1
19. Simplified evaluation: 3 (a + 1) ^ 2 - (a + 1) (2a-1) where a = 1 It's simplified evaluation!
20. First simplify and then evaluate: (2a + 1) ^ 2 - (2a + 1) (2a-1), where a = change sign 5-1 / 2