展开 (2(x-1))/(x+1)

解答

展开

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

\frac{2 x - 2}{x + 1}

求解步骤

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

乘开

2 (x - 1) : 2 x - 2

= \frac{2 x - 2}{x + 1}

e x p an d (c e^{t^{2}} + 4 t)^{2}

e x p an d \frac{3 ( s + 100 )}{4}

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

e x p an d \frac{2 x ( - x ^{4} + y ^{4} ) ^{2}}{y ^{9}}

e x p an d \frac{( x + 4 ) ( x + 5 )}{( x + 1 ) ( x + 2 ) ( x - 3 )}