若(x^m÷x^2n)÷x^2m-n与2x^3是同类项……1.若(x^m÷x^2n)÷x^2m-n与2x^3是同类项,且m+5n=2,求m^2-25n的值.
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若(x^m÷x^2n)÷x^2m-n与2x^3是同类项……1.若(x^m÷x^2n)÷x^2m-n与2x^3是同类项,且m+5n=2,求m^2-25n的值.
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