化简-2(t-3)

解答

化简

- 2 (t - 3)

- 2 t + 6

求解步骤

- 2 (t - 3)

使用分配律:

a (b - c) = ab - a c

- 2 (t - 3) = - 2 t - (- 2) \cdot 3

= - 2 t - (- 2) \cdot 3

- (- 2) \cdot 3 = 6

= - 2 t + 6

e x p an d (x^{2} - 4 y)^{4}

s im pl i f y (2 (x + 1) - 4 (x + 3)) (2 (x + 1) - 4 (x + 3))

f a c t or 49 x^{2} - 56 x y + 16 y^{2}

e x p an d x (3 x - 2)

s im pl i f y 5 - 45