因式分解 2a^2b^2-2a^2-2ab^3+2ab

解答

因式分解

2 a^{2} b^{2} - 2 a^{2} - 2 a b^{3} + 2 ab

2 a (b + 1) (b - 1) (a - b)

求解步骤

2 a^{2} b^{2} - 2 a^{2} - 2 a b^{3} + 2 ab

因式分解出通项

2 a : 2 a (a b^{2} - a - b^{3} + b)

= 2 a (a b^{2} - a - b^{3} + b)

因式分解

a b^{2} - a - b^{3} + b : (b + 1) (b - 1) (a - b)

= 2 a (b + 1) (b - 1) (a - b)

5 (x + 1) - 6 (x - 3) + 2 (2 x + 1) = 28

s im pl i f y 3216

∣ x ∣ \leq 12

\frac{x + 18}{x + 4} \geq 3

3 + 6 x = 2 x + 27