展开 2(4x)

解答

展开

2 (4 x)

8 x

求解步骤

2 (4 x)

去除括号:

(a) = a

= 2 \cdot 4 x

数字相乘:

2 \cdot 4 = 8

= 8 x

e x p an d \frac{( x - 1 ) ( x ^{2} + x + 1 )}{x ^{3}}

e x p an d \frac{π ( 7 - 13 )}{36} (e^{729} - 1)

e x p an d \frac{- 1 - x}{( x - 3 ) ^{3}}

s im pl i f y (n + 6)^{2}

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