问题
解答题
(1) -12011 +(-2)-2 -(3.14-∏)0 (2) (2x3y)2 (-2xy)+(-2x3y)3÷2x2
答案
(1) - (2)-12 x7y3
(1) -12011 +(-2)-2 -(3.14-∏)0 (2)(2x3y)2 (-2xy)+(-2x3y)3÷2x2
="-1+" -1 =-8x7y3+(-4 x7y3)
= - ="-12" x7y3