展开 2/(5(2x+3))

解答

展开

\frac{2}{5 ( 2 x + 3 )}

\frac{2}{10 x + 15}

求解步骤

\frac{2}{5 ( 2 x + 3 )}

乘开

5 (2 x + 3) : 10 x + 15

= \frac{2}{10 x + 15}

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

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

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

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

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