(3x+2y)(4x-3y)-5xy要分解因式
问题描述:
(3x+2y)(4x-3y)-5xy
要分解因式
答
(3x+2y)(4x-3y)-5xy
=12x^2-9xy+8xy-6y^2-5xy
=12x^2-6xy-6y^2
=6(2x^2-xy-y^2)
=6(2x+y)(x-y)