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Antoha07
@Antoha07
July 2022
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vmaluga2011
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X^2/(x^2+7xy):x/(x^2-49y^2)=x^2/x(x+7y):x/(x-7y)(x+7y)=х-7у
При х=3-7v2; у=9-v2
3-7v2-7(9-v2)=3-7v2-63+7v2=3-63=
-60
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Verified answer
X^2/(x^2+7xy):x/(x^2-49y^2)=x^2/x(x+7y):x/(x-7y)(x+7y)=х-7уПри х=3-7v2; у=9-v2
3-7v2-7(9-v2)=3-7v2-63+7v2=3-63=-60