计算题:(1)(-2xy2)3(2)(-2x)-(3x2y)(3)-(x2)3-x4-x2(4)(-3)0+(-12)-2÷|-2|(5)(3x2y-2x+1)(-2xy)(6)(x-3y)(x-12

题目简介

计算题:(1)(-2xy2)3(2)(-2x)-(3x2y)(3)-(x2)3-x4-x2(4)(-3)0+(-12)-2÷|-2|(5)(3x2y-2x+1)(-2xy)(6)(x-3y)(x-12

题目详情

计算题:
(1)(-2xy23
(2)(-2x)-(3x2y)
(3)-(x23-x4-x2
(4)(-3)0+(-
1
2
)-2÷|-2|

(5)(3x2y-2x+1)(-2xy)
(6)(x-3y)(x-
1
2
y)
题型:解答题难度:中档来源:不详

答案

(1)原式=-8x3y6;

(2)原式=-6x3y;

(3)原式=-x6-x6
=-2x6;

(4)原式=1+4÷2
=3;

(5)原式=-6x3y2+4x2y-2xy;

(6)原式=x2-class="stub"1
2
xy-3xy+class="stub"3
2
y2
=x2-class="stub"3
2
xy+class="stub"3
2
y2.

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