化简 (-4xy)^3(-2x^2)^3

解答

化简

(- 4 x y)^{3} (- 2 x^{2})^{3}

512 x^{9} y^{3}

求解步骤

(- 4 x y)^{3} (- 2 x^{2})^{3}

化简

(- 4 x y)^{3} : - 64 x^{3} y^{3}

= - 64 x^{3} y^{3} (- 2 x^{2})^{3}

化简

(- 2 x^{2})^{3} : - 8 x^{6}

= - 64 x^{3} y^{3} (- 8 x^{6})

使用法则:

- a (- b) = ab

- 64 x^{3} y^{3} (- 8 x^{6}) = 64 x^{3} y^{3} \cdot 8 x^{6}

= 64 x^{3} y^{3} \cdot 8 x^{6}

数字相乘:

64 \cdot 8 = 512

= 512 x^{3} y^{3} x^{6}

化简

x^{3} x^{6} : x^{9}

= 512 x^{9} y^{3}

13 x - 5 (x + 2) = 4 (2 x - 1) + 7

\frac{1}{x - 1} \leq 1

f a c t or 4 x^{4} - 5 x^{2} y^{2} - 2 x^{3}

- 3 (3 x + 5) + 25 = 3 x + 5 x + 26

69 = a (1.48665)^{6.5}