Question

6x^2-y^2+xy+x+3y-2因式分解

如题

Answer 1

6x²-y²+xy+x+3y-2
=（6x²+xy-y²）+（x+3y）-2
=（2x+y）（3x-y）+（x+3y）-2
=（2x+y）（3x-y）+（2（2x+y）-（3x-y））-2
=（2x+y-1）（3x-y+2）

Answer 2

6x²-y²+xy+x+3y-2
=6x²+xy-y²+x+3y-2
=(2x+y)(3x-y)+x+3y-2
=(2x+y-1)(3x-y+2)