展开-8x^4-15x^7x

解答

展开

- 8 x^{4} - 15 x^{7} x

- 15 x^{8} - 8 x^{4}

求解步骤

- 8 x^{4} - 15 x^{7} x

15 x^{7} x = 15 x^{8}

= - 8 x^{4} - 15 x^{8}

改写为标准形式

= - 15 x^{8} - 8 x^{4}

e x p an d ln (\frac{4 x}{x - 4})

e x p an d (x)^{6}

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

e x p an d (3 + 2 x + 4 x^{2})^{5}

e x p an d \frac{( u + 5 ) ( 24 u - 30 )}{4 u ^{4} - 25 u ^{2}}