作业帮＂＂"2*x^2+x*y-y^2-4*x+5y-6"因式分解
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/15 21:48:17
x){ *⌴+*u+tM*M+u͔^tOӎ$铢\Άdʠ Fڕ8%lm#
mc
ʃ4ua,1\F 17 m
＂＂"2*x^2+x*y-y^2-4*x+5y-6"因式分解
＂＂"2*x^2+x*y-y^2-4*x+5y-6"因式分解
＂＂"2*x^2+x*y-y^2-4*x+5y-6"因式分解
2x^2+xy-y^2-4x+5y-6
=(2x-y)(x+y)-4x+5y-6
=(2x-y)(x+y)+(2x+2y)-6x+3y-6
=(2x-y)(x+y)+2(x+y)-6x+3y-6
=(x+y)(2x-y+2)-3(2x-y+2)
=(x+y-3)(2x-y+2)