展开 (3x+4)/(x(x+1)(x-1))

解答

展开

\frac{3 x + 4}{x ( x + 1 ) ( x - 1 )}

\frac{3 x + 4}{x ^{3} - x}

求解步骤

\frac{3 x + 4}{x ( x + 1 ) ( x - 1 )}

乘开

x (x + 1) (x - 1) : x^{3} - x

= \frac{3 x + 4}{x ^{3} - x}

s im pl i f y (2 + - y^{2} + y - 4)^{2}

e x p an d 16 (x - 1)^{2} + 16 (- \frac{1}{4} x + \frac{1}{4})^{2}

e x p an d (2 x^{4} - 1)^{'} \cdot (5 x^{3} - 6) + (5 x^{3} - 6)^{'} \cdot (2 x^{4} - 1)

e x p an d - K L + (U (t - \frac{e ^{x t} - 1}{x}))

s im pl i f y (2 - 3) (2 + 46)