展开-x/((100+x^2)(1+4x))

解答

展开

- \frac{x}{( 100 + x ^{2} ) ( 1 + 4 x )}

- \frac{x}{100 + 400 x + x ^{2} + 4 x ^{3}}

求解步骤

- \frac{x}{( 100 + x ^{2} ) ( 1 + 4 x )}

乘开

(100 + x^{2}) (1 + 4 x) : 100 + 400 x + x^{2} + 4 x^{3}

= - \frac{x}{4 x ^{3} + x ^{2} + 400 x + 100}

e x p an d \frac{π}{24} (x - 5)

e x p an d \frac{( ( 64 x + 32 ) ( 2 x + 2 ) )}{2}

e x p an d (1 + 2 x)^{0.5} (2 x) (x^{2} + 1)^{\frac{1}{3}}

e x p an d F (0.3) D (y = - 3)

e x p an d lo g_{7} (w)