展开 (12X+18)/((X+2)(X+4)(X-1))

解答

展开

\frac{12 X + 18}{( X + 2 ) ( X + 4 ) ( X - 1 )}

\frac{12 X + 18}{X ^{3} + 5 X ^{2} + 2 X - 8}

求解步骤

\frac{12 X + 18}{( X + 2 ) ( X + 4 ) ( X - 1 )}

乘开

(X + 2) (X + 4) (X - 1) : X^{3} + 5 X^{2} + 2 X - 8

= \frac{12 X + 18}{X ^{3} + 5 X ^{2} + 2 X - 8}

e x p an d (x + 2 y - z)^{5}

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

e x p an d 5 + 4 t - 3 t^{2} + 3 e^{-} 4 t - 5 (sin (4 t) + 3 cos (4 t))

e x p an d π (x + 2)^{2} (x + 5)

e x p an d \frac{( 8 x )}{( x ^{(3)} - x ^{(2)} - x - 1 ) d x}