因式分解:2x^2-3xy-y^2=___________

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因式分解:2x^2-3xy-y^2=___________因式分解:2x^2-3xy-y^2=___________因式分解:2x^2-3xy-y^2=___________2x^2-3xy-y^2=

因式分解:2x^2-3xy-y^2=___________
因式分解:2x^2-3xy-y^2=___________

因式分解:2x^2-3xy-y^2=___________
2x^2-3xy-y^2
=(2x-y)(x+y)

十字相乘法分解因式
2x^2-3xy-y^2
=(2x-y)(x+y)