展开 (3(x+5))/(x+4)

解答

展开

\frac{3 ( x + 5 )}{x + 4}

\frac{3 x + 15}{x + 4}

求解步骤

\frac{3 ( x + 5 )}{x + 4}

乘开

3 (x + 5) : 3 x + 15

= \frac{3 x + 15}{x + 4}

e x p an d \frac{25}{s ( s + 5 )}

e x p an d \frac{- ( X - 10 ) ^{3}}{375000}

e x p an d so l v e (- 1575000 + \frac{x}{1 + ( 0.2139600000000 \dots ) ^{2}} = 0, x)

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

e x p an d x (y = - x^{2} + x + 2)