问题标题:
2x²+5xy+2y²+3x+3y-96x²+13xy+6y²+5x+5y+1
问题描述:
2x²+5xy+2y²+3x+3y-96x²+13xy+6y²+5x+5y+1
刘连臣回答:
2x²+5xy+2y²+3x-3y-9
=(2x+y)(x+2y)+3(x-y)-9
=(2x+y-3)(x+2y+3)
6x²+13xy+6y²+5x+5y+1
=(2x+3y)(3x+2y)+5(x+y)+1
=(2x+3y+1)(3x+2y+1)
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