因式分解 (a-b)(2x^2+9)-(b-a)(7x-6)

解答

因式分解

(a - b) (2 x^{2} + 9) - (b - a) (7 x - 6)

(a - b) (2 x^{2} + 9) - (- (a - b) (7 x - 6))

求解步骤

(a - b) (2 x^{2} + 9) - (b - a) (7 x - 6)

使用交换律:

b - a = - a + b

= (a - b) (2 x^{2} + 9) - (- a + b) (7 x - 6)

因式分解

- a + b : - (a - b)

= (a - b) (2 x^{2} + 9) - (- (a - b) (7 x - 6))

s im pl i f y 21.58332 + \frac{( 8 ^{2} )}{12}

s im pl i f y \frac{9 !}{5 ! 4 !}

f a c t or 625 x^{4} - 1

∣ w ∣ = 9

x^{2} - 3 x + 15 = 0