展开 ((p-11)r(p-6))/(2(p^2-12p+36-5r))

解答

展开

\frac{( p - 11 ) r ( p - 6 )}{2 ( p ^{2} - 12 p + 36 - 5 r )}

\frac{p ^{2} r - 17 p r + 66 r}{2 p ^{2} - 24 p + 72 - 10 r}

求解步骤

\frac{( p - 11 ) r ( p - 6 )}{2 ( p ^{2} - 12 p + 36 - 5 r )}

乘开

2 (p^{2} - 12 p + 36 - 5 r) : 2 p^{2} - 24 p + 72 - 10 r

= \frac{r ( p - 11 ) ( p - 6 )}{2 p ^{2} - 24 p + 72 - 10 r}

乘开

(p - 11) r (p - 6) : p^{2} r - 17 p r + 66 r

= \frac{p ^{2} r - 17 p r + 66 r}{2 p ^{2} - 24 p + 72 - 10 r}

s im pl i f y (n - 6) (n - \frac{1}{2})

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

e x p an d \frac{( X + 25 ) ( X + 3 )}{X + 5}

e x p an d (1000 sin (100 t) + 1) \cdot (0.1 cos (100 t))

e x p an d 6 (u^{2} + 1)