展开 (2-x)/(x^3(x-3))

解答

展开

\frac{2 - x}{x ^{3} ( x - 3 )}

\frac{2 - x}{x ^{4} - 3 x ^{3}}

求解步骤

\frac{2 - x}{x ^{3} ( x - 3 )}

乘开

x^{3} (x - 3) : x^{4} - 3 x^{3}

= \frac{2 - x}{x ^{4} - 3 x ^{3}}

e x p an d \frac{2}{( 4 x + 3 ) ( 4 x - 1 )}

e x p an d \frac{x}{x ^{2} + 1} + \frac{1}{3 x} - \frac{1}{x ^{2}}

e x p an d \frac{( n + 3 ) ( n + 2 )}{( n + 1 ) ( n + 4 )}

e x p an d \frac{( 4 - 16 x )}{( 5 - 4 x ) ( 2 x + 3 )}

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