展开 x((x-0.5)(x-1))

解答

展开

x ((x - 0.5) (x - 1))

x^{3} - 1.5 x^{2} + 0.5 x

求解步骤

x ((x - 0.5) (x - 1))

去除括号:

(a) = a

= x (x - 0.5) (x - 1)

乘开

(x - 0.5) (x - 1) : x^{2} - 1.5 x + 0.5

= x (x^{2} - 1.5 x + 0.5)

乘开

x (x^{2} - 1.5 x + 0.5) : x^{3} - 1.5 x^{2} + 0.5 x

= x^{3} - 1.5 x^{2} + 0.5 x

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

e x p an d \frac{e ^{s} + s ^{2} + s}{s ( s ^{2} + s )}

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

e x p an d (18 e^{3 t} t + 12 e^{3 t}) \cdot (2 e^{3 t} + 3 e^{3 t} t)

e x p an d (x + 3) x^{4} + 4 x^{3} - 5 d x