展开 (x^2+x-xy-y)/(p(3p+2q-5))

解答

展开

\frac{x ^{2} + x - x y - y}{p ( 3 p + 2 q - 5 )}

\frac{x ^{2} + x - x y - y}{3 p ^{2} + 2 pq - 5 p}

求解步骤

\frac{x ^{2} + x - x y - y}{p ( 3 p + 2 q - 5 )}

乘开

p (3 p + 2 q - 5) : 3 p^{2} + 2 pq - 5 p

= \frac{x ^{2} + x - x y - y}{3 p ^{2} + 2 pq - 5 p}

e x p an d (sin (y)) (x + sin (y)) d x

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

e x p an d \frac{1}{( 1 - k v ) ( 1 + k v )}

e x p an d d x (x^{2} - 6)

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