展开 1/(2(4x-10))

解答

展开

\frac{1}{2 ( 4 x - 10 )}

\frac{1}{8 x - 20}

求解步骤

\frac{1}{2 ( 4 x - 10 )}

乘开

2 (4 x - 10) : 8 x - 20

= \frac{1}{8 x - 20}

e x p an d (x + y = 5,) - (x - y = 1)

e x p an d \frac{4 ( x - 82 )}{5}

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

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

e x p an d a (- 3, 2) y b (2, - 4)