Two adjacent sides of a rectangle are 3 x square -5 y square and 7 x s – InterviewSolution

1.	Two adjacent sides of a rectangle are 3 x square -5 y square and 7 x square - xy .find its perimeter
Answer» 2(l+b) = 2( 3x^2 - 5y^2 + 7X - XY ) = 2 ( 10x^2 - 5y^2 - xy ) = 20x^2 - 10y^2 - 2XY

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