展开 x(1-\sqrt[3]{x})

解答

展开

x (1 - 3 x)

x - x 3 x

求解步骤

x (1 - 3 x)

使用分配律:

a (b - c) = ab - a c

x (1 - 3 x) = x \cdot 1 - x 3 x

= x \cdot 1 - x 3 x

使用法则:

a \cdot 1 = a

x \cdot 1 = x

= x - x 3 x

e x p an d \frac{( 8 x ^{2} + 13 )}{( x ^{2} + 1 ) ( x + 1 )}

s im pl i f y 1 + \frac{3.3 ( s + 6 ) ( s + 10.75 )}{( s + 2 ) ( s + 3 ) ( s + 5 )}

e x p an d (3 (x) + 2 (h, y) - 5) - (3 (x) + 2 (y) - 5)

e x p an d 7 (10 - 3)

e x p an d \frac{- x ^{2} + 18 x + 64}{( x ^{2} + 64 ) ^{2}}