若x/y=2/3,分式2x^2+xy+3y^2/x^2-xy+2y^2的值
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![若x/y=2/3,分式2x^2+xy+3y^2/x^2-xy+2y^2的值](/uploads/image/z/1014556-4-6.jpg?t=%E8%8B%A5x%2Fy%3D2%2F3%2C%E5%88%86%E5%BC%8F2x%5E2%2Bxy%2B3y%5E2%2Fx%5E2-xy%2B2y%5E2%E7%9A%84%E5%80%BC)
若x/y=2/3,分式2x^2+xy+3y^2/x^2-xy+2y^2的值
若x/y=2/3,分式2x^2+xy+3y^2/x^2-xy+2y^2的值
若x/y=2/3,分式2x^2+xy+3y^2/x^2-xy+2y^2的值
令x=2a,y=3a,a≠0
2x^2+xy+3y^2/x^2-xy+2y^2
=8a²+6a²+27a²/4a²-6a²+18a²
=41a²/16a²
=41/16