展开 (a+b)/(2(a-b))

解答

展开

\frac{a + b}{2 ( a - b )}

\frac{a + b}{2 a - 2 b}

求解步骤

\frac{a + b}{2 ( a - b )}

乘开

2 (a - b) : 2 a - 2 b

= \frac{a + b}{2 a - 2 b}

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

e x p an d \frac{s + 13}{( s + 1 ) ^{2} \cdot ( s + 5 )}

e x p an d - 6 + i^{335} + 8 i^{87} + - 121

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

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