因式分解：6x^2-7x-5,14x^2-37xy+5y^2,15x^2-7xy-4y^2
问题描述：
因式分解：6x^2-7x-5,14x^2-37xy+5y^2,15x^2-7xy-4y^2
答
6x^2-7x-5
=(2x+3)(x-5)
14x^2-37xy+5y^2
=(7x-y)(2x-5y)
15x^2-7xy-4y^2
=(5x-4y)(3x+y)