因式分解 4x^2+4xy+y^2-10x-5y-14
问题描述:
因式分解 4x^2+4xy+y^2-10x-5y-14
答
4x^2+4xy+y^2-10x-5y-14
=(4x^2+4xy+y^2)-(10x+5y)-14
=(2x+y)^2-5(2x+y)-14
=(2x+y+2)(2x+y-7)