展开 x^{(3/5)}(x-3)

解答

展开

x^{(\frac{3}{5})} (x - 3)

x^{\frac{8}{5}} - x^{\frac{3}{5}} \cdot 3

求解步骤

x^{\frac{3}{5}} (x - 3)

使用分配律:

a (b - c) = ab - a c

x^{\frac{3}{5}} (x - 3) = x^{\frac{3}{5}} x - x^{\frac{3}{5}} \cdot 3

= x^{\frac{3}{5}} x - x^{\frac{3}{5}} \cdot 3

化简

x^{\frac{3}{5}} x : x^{\frac{8}{5}}

= x^{\frac{8}{5}} - x^{\frac{3}{5}} \cdot 3

e x p an d (1 - 5) (2 + 3)

e x p an d \frac{1 - x}{4 ( 1 + x )}

s im pl i f y \frac{8 t}{8 t ^{2} + 1} - \frac{2}{2 ( 8 t ^{2} + 1 )}

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

e x p an d (x - \frac{2}{x})^{4} (x^{2} + \frac{2}{x})^{3}