Question

(1/2x²+xy-1.5y²)/x²-y²怎么化简?

Answer 1

您好：

(1/2x²+xy-1.5y²)/x²-y²

=(x²+2xy-3y²)/2(x+y)(x-y)

=(x-y)(x+3y)/2(x+y)(x-y)

=(x+3y)/(2x+2y)

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