因式分解:mx^2-(3m+2)x+2m+2
问题描述:
因式分解:mx^2-(3m+2)x+2m+2
答
mx²-(3m+2)x+2m+2
=mx²-(m+2m+2)x+2m+2
=mx²-mx-(2m+2)x+2m+2
=mx(x-1)-(2m+2)(x-1)
=(x-1)(mx-2m-2)