展开 (2x^6y^2)(2x^3-y^7z^2)

解答

展开

(2 x^{6} y^{2}) (2 x^{3} - y^{7} z^{2})

4 x^{9} y^{2} - 2 x^{6} y^{9} z^{2}

求解步骤

(2 x^{6} y^{2}) (2 x^{3} - y^{7} z^{2})

使用分配律:

a (b - c) = ab - a c

(2 x^{6} y^{2}) (2 x^{3} - y^{7} z^{2}) = 2 x^{6} y^{2} \cdot 2 x^{3} - 2 x^{6} y^{2} y^{7} z^{2}

= 2 x^{6} y^{2} \cdot 2 x^{3} - 2 x^{6} y^{2} y^{7} z^{2}

化简

2 x^{6} y^{2} \cdot 2 x^{3} - 2 x^{6} y^{2} y^{7} z^{2} : 4 x^{9} y^{2} - 2 x^{6} y^{9} z^{2}

= 4 x^{9} y^{2} - 2 x^{6} y^{9} z^{2}

s im pl i f y - 9^{\frac{3}{2}}

s im pl i f y 1 - e^{- 5}

s im pl i f y 1 0^{- 1.7}

s im pl i f y (a^{2} b)^{3}

s im pl i f y lo g_{0.1} (10)