展开 (x^{10})/((x+a)^5)

解答

展开

\frac{x ^{10}}{( x + a ) ^{5}}

\frac{x ^{10}}{x ^{5} + 5 a x ^{4} + 10 a ^{2} x ^{3} + 10 a ^{3} x ^{2} + 5 a ^{4} x + a ^{5}}

求解步骤

\frac{x ^{10}}{( x + a ) ^{5}}

(x + a)^{5} = x^{5} + 5 a x^{4} + 10 a^{2} x^{3} + 10 a^{3} x^{2} + 5 a^{4} x + a^{5}

= \frac{x ^{10}}{x ^{5} + 5 a x ^{4} + 10 a ^{2} x ^{3} + 10 a ^{3} x ^{2} + 5 a ^{4} x + a ^{5}}

e x p an d \frac{s ^{2} + 6 s + 6}{( s + 1 ) ^{2} ( s + 3 )}

e x p an d - 1 (- lo g_{4} (x - 3) = - 2)

e x p an d \frac{2 y ^{3} - 21 y ^{2} + 102 y + 75}{2 ( y + 5 ) ( y - 6 )}

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

e x p an d (b + f) (e j c + e (a f + a + f + 1 + e - e b))