5xy2-{2x2y-[3xy2-(xy2-2x2y)]÷(-12xy)}-数学

题目简介

5xy2-{2x2y-[3xy2-(xy2-2x2y)]÷(-12xy)}-数学

题目详情

5xy2-{2x2y-[3xy2-(xy2-2x2y)]÷(-
1
2
xy)}
题型:解答题难度:中档来源:不详

答案

原式=5xy2-{2x2y-[3xy2-xy2+2x2y]÷(-class="stub"1
2
xy)}
=5xy2-{2x2y+4y+4x}
=5xy2-2x2y-4y-4x.

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