题目内容
(1) -12011 +(-2)-2 -(3.14-∏)0 (2) (2x3y)2 (-2xy)+(-2x3y)3÷2x2
(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
="-1+"
= -
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