分解因式x²-5y+xy-5x

来源：学生作业帮助网编辑：作业帮时间：2024/11/17 01:42:44

分解因式x²-5y+xy-5x
分解因式x²-5y+xy-5x

分解因式x²-5y+xy-5x
x²-5y+xy-5x
=x²+xy-5(x+y)
=x(x+y)-5(x+y)
=(x+y)(x-5)

x²-5y+xy-5x
=x²+xy-5x-5y
=x(x+y)-5(x+y)
=(x-5)(x+y)

=x(x-5)+y(x-5)=(x+y)(x-5)