Two adjacent sides of a rectangle are −6x2+9y2−5xy and x2−2x+9xy – InterviewSolution

1.	Two adjacent sides of a rectangle are −6x2+9y2−5xy and x2−2x+9xy. Find its perimeter.
Answer» Two adjacent sides of a rectangle are $- 6 x^{2} + 9 y^{2} - 5 x y a n d x^{2} - 2 x + 9 x y$ . Find its perimeter.

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