展开 1/(4(1-x))

解答

展开

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

\frac{1}{4 - 4 x}

求解步骤

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

乘开

4 (1 - x) : 4 - 4 x

= \frac{1}{4 - 4 x}

e x p an d \frac{- s ^{2} + 25}{( s ^{2} + 25 ) ^{2}}

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

e x p an d x (5 - e^{0.1 x})

e x p an d \frac{2}{( s + 1 ) ( s ^{2} + 2 s + 5 )}

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