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5(x2y-xy+2xy2-1)-2(3x2y+4xy2-2xy+3)化简
题目详情
5(x2y-xy+2xy2-1)-2(3x2y+4xy2-2xy+3_) 化简
▼优质解答
答案和解析
5(x2y-xy+2xy2-1)-2(3x2y+4xy2-2xy+3)
=5x²y-5xy+10xy²-5-6x²y-8xy²+4xy-6
=-x²y-xy+2xy²-11
=5x²y-5xy+10xy²-5-6x²y-8xy²+4xy-6
=-x²y-xy+2xy²-11
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