展开 ((-3x-15)*2x(2x^2-11x+5))/(x^3-25)

解答

展开

\frac{( - 3 x - 15 ) \cdot 2 x ( 2 x ^{2} - 11 x + 5 )}{x ^{3} - 25}

\frac{- 12 x ^{4} + 6 x ^{3} + 300 x ^{2} - 150 x}{x ^{3} - 25}

求解步骤

\frac{( - 3 x - 15 ) \cdot 2 x ( 2 x ^{2} - 11 x + 5 )}{x ^{3} - 25}

乘开

(- 3 x - 15) \cdot 2 x (2 x^{2} - 11 x + 5) : - 12 x^{4} + 6 x^{3} + 300 x^{2} - 150 x

= \frac{- 12 x ^{4} + 6 x ^{3} + 300 x ^{2} - 150 x}{x ^{3} - 25}

s im pl i f y (3 + 2 i)^{6}

e x p an d (\frac{2 x ^{3}}{3 y} - \frac{8 w ^{\frac{1}{2}}}{5})^{6}

e x p an d (x + 1) sin (x)

e x p an d b x^{3} (c x^{2} + d x + e)

e x p an d 2 (x_{1} + x_{2} + x_{3})^{2} - x_{2} - x_{3}