4x^2 + 4xy + y^2 -10x - 5y +6 的分解因式!
问题描述:
4x^2 + 4xy + y^2 -10x - 5y +6 的分解因式!
答
4x^2 + 4xy + y^2 -10x - 5y +6
=(4x^2+4xy+y^2)-(10x+5y)+6
=(2x+y)^2-5(2x+y)+6
=(2x+y-2)(2x+y-3)