化简 (-2x+2)2-3(2x-2)(x+3)

解答

化简

(- 2 x + 2) 2 - 3 (2 x - 2) (x + 3)

- 6 x^{2} - 16 x + 22

求解步骤

(- 2 x + 2) \cdot 2 - 3 (2 x - 2) (x + 3)

= 2 (- 2 x + 2) - 3 (2 x - 2) (x + 3)

展开

2 (- 2 x + 2) : - 4 x + 4

= - 4 x + 4 - 3 (2 x - 2) (x + 3)

展开

- 3 (2 x - 2) (x + 3) : - 6 x^{2} - 12 x + 18

= - 4 x + 4 - 6 x^{2} - 12 x + 18

对同类项分组

= - 6 x^{2} - 4 x - 12 x + 4 + 18

s im pl i f y - 2 x + 11 + x - 1 + (- 2) x + 11 + x - 1

s im pl i f y \frac{1}{( 2 - \frac{2}{a} )} + \frac{1}{( \frac{2}{a} - 2 )}

e x p an d (x^{5} + y^{5}) (x^{10} - x^{5} y^{5} + y^{10})

f a c t or a^{4} b^{2} + a^{2} b^{4}

f a c t or n^{2} h^{4} + h^{2} o