展开 (x(x-1))/((x+3)(x-2))

解答

展开

\frac{x ( x - 1 )}{( x + 3 ) ( x - 2 )}

\frac{x ^{2} - x}{x ^{2} + x - 6}

求解步骤

\frac{x ( x - 1 )}{( x + 3 ) ( x - 2 )}

乘开

(x + 3) (x - 2) : x^{2} + x - 6

= \frac{x ( x - 1 )}{x ^{2} + x - 6}

乘开

x (x - 1) : x^{2} - x

= \frac{x ^{2} - x}{x ^{2} + x - 6}

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

e x p an d z (x yz - 8^{z} = 0)

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

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

s im pl i f y x (1 + \frac{x}{10})