展开 (6c(a-3)(c+4))/((a-1)(c+5))

解答

展开

\frac{6 c ( a - 3 ) ( c + 4 )}{( a - 1 ) ( c + 5 )}

\frac{6 c ^{2} a + 24 c a - 18 c ^{2} - 72 c}{c a + 5 a - c - 5}

求解步骤

\frac{6 c ( a - 3 ) ( c + 4 )}{( a - 1 ) ( c + 5 )}

乘开

(a - 1) (c + 5) : c a + 5 a - c - 5

= \frac{6 c ( a - 3 ) ( c + 4 )}{c a + 5 a - c - 5}

乘开

6 c (a - 3) (c + 4) : 6 c^{2} a + 24 c a - 18 c^{2} - 72 c

= \frac{6 c ^{2} a + 24 c a - 18 c ^{2} - 72 c}{c a + 5 a - c - 5}

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

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

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

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

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