题目
2x²-xy+3x-y+1因式分解
提问时间:2020-10-11
答案
2x²-xy+3x-y+1
=2x^2+3x+1-y(x+1)
=(2x+1)(x+1)-y(x+1)
=(x+1)(2x-y+1)
=2x^2+3x+1-y(x+1)
=(2x+1)(x+1)-y(x+1)
=(x+1)(2x-y+1)
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