计算〖(3x+y)(x-y0-(2x+3y)(x-y)〗÷(x-y)
题目
计算〖(3x+y)(x-y0-(2x+3y)(x-y)〗÷(x-y)
〖(3x+y)(x-y0-(2x+3y)(x-y)〗÷(x-y)
打错了应该是〖(3x+y)(x-y)-(2x+3y)(x-y)〗÷(x-y)
答案
〖(3x+y)(x-y)-(2x+3y)(x-y)〗÷(x-y)
=(x-y)(3x+y-2x-3y)÷(x-y)
=(x-y)(x-2y)÷(x-y)
=x-2y
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