展开 ((z^2+1)(z^2+4))/(z-1)

解答

展开

\frac{( z ^{2} + 1 ) ( z ^{2} + 4 )}{z - 1}

\frac{z ^{4} + 5 z ^{2} + 4}{z - 1}

求解步骤

\frac{( z ^{2} + 1 ) ( z ^{2} + 4 )}{z - 1}

乘开

(z^{2} + 1) (z^{2} + 4) : z^{4} + 5 z^{2} + 4

= \frac{z ^{4} + 5 z ^{2} + 4}{z - 1}

e x p an d t er m s (4 + 7 a^{2}) 2

e x p an d sin (2) (π + x) - cos (x)

e x p an d \frac{k ( 2 k + 1 )}{6} + (k + 1)

e x p an d 9 (5 x - 2 y = - 6)

\frac{d}{d y} ((x) (x y^{2} + g (y)))