展开-(x+1)/(x^2(x+4)^2)

解答

展开

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

- \frac{x + 1}{x ^{4} + 8 x ^{3} + 16 x ^{2}}

求解步骤

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

(x + 4)^{2} = x^{2} + 8 x + 16

= - \frac{x + 1}{x ^{2} ( x ^{2} + 8 x + 16 )}

乘开

x^{2} (x^{2} + 8 x + 16) : x^{4} + 8 x^{3} + 16 x^{2}

= - \frac{x + 1}{x ^{4} + 8 x ^{3} + 16 x ^{2}}

(200 - e) \cdot 50

\frac{9}{( x + 1 ) ^{2}}

\frac{c x + k}{( x - p ) ^{2}}

s (s^{2} + 2 s + 1)^{2}

(7, 3, 2) x (1, - 1, 5)