问题
解答题
计算: (1)(-1)2012+(-
(2)(2x3y)2•(-2xy)+(-2x3y)3÷(2x2) (3)(6m2n-6m2n2-3m2)÷(-3m2) |
答案
(1)原式=1+4-1=4;
(2)原式=4x6y2•(-2xy)÷2x2=-4x5y3;
(3)原式=-2n+2n2+1.
计算: (1)(-1)2012+(-
(2)(2x3y)2•(-2xy)+(-2x3y)3÷(2x2) (3)(6m2n-6m2n2-3m2)÷(-3m2) |
(1)原式=1+4-1=4;
(2)原式=4x6y2•(-2xy)÷2x2=-4x5y3;
(3)原式=-2n+2n2+1.