展开 4/(x^3(x^2+3))

解答

展开

\frac{4}{x ^{3} ( x ^{2} + 3 )}

\frac{4}{x ^{5} + 3 x ^{3}}

求解步骤

\frac{4}{x ^{3} ( x ^{2} + 3 )}

乘开

x^{3} (x^{2} + 3) : x^{5} + 3 x^{3}

= \frac{4}{x ^{5} + 3 x ^{3}}

s im pl i f y \frac{1}{( z - i ) ^{2}}

s im pl i f y 3 (\frac{( - 1 ) ^{k - 1} + 1}{2} + 3^{k - 1})

e x p an d \frac{a + b}{( ( d + e ) \cdot ( a - c ) )}

e x p an d (x^{2} - 2 y) d x + (2 x y - 3 x^{2}) d y

e x p an d 2 cos (t) (3 - 7 tan (t))