展开 1/((-x^2+a)x)

解答

展开

\frac{1}{( - x ^{2} + a ) x}

\frac{1}{- x ^{3} + a x}

求解步骤

\frac{1}{( - x ^{2} + a ) x}

乘开

(- x^{2} + a) x : - x^{3} + a x

= \frac{1}{- x ^{3} + a x}

e x p an d (y = 3 x^{2} + 12 x + 2,) (,)

e x p an d ((- 1 - t), (12 - 11 + 2 t^{2})) \cdot (- 2, - 1)

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

e x p an d (16 x^{2} + 25) (x - 1 - x + 1 - 1)

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