展开-(3u^2+2u-2)/(u(u^3-1))

解答

展开

- \frac{3 u ^{2} + 2 u - 2}{u ( u ^{3} - 1 )}

- \frac{3 u ^{2} + 2 u - 2}{u ^{4} - u}

求解步骤

- \frac{3 u ^{2} + 2 u - 2}{u ( u ^{3} - 1 )}

乘开

u (u^{3} - 1) : u^{4} - u

= - \frac{3 u ^{2} + 2 u - 2}{u ^{4} - u}

e x p an d 8 cos^{2} (2 t) + (t - 5)^{2} - 7 e^{4 t}

s im pl i f y δ (x - 3)

e x p an d \frac{- x ^{2} - 9}{( x ^{2} - 9 ) ^{2}}

s im pl i f y (2 x - 5) (2 x + 5)

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