Hii guys i want the answer of fifth question that is (ax+by)2 of std 7 – InterviewSolution

1.

Hii guys i want the answer of fifth question that is (ax+by)2 of std 7the formula is (a+b)2=A2+2ab+b2 this is of chapter Algebraic formulae - expansion of squares

Answer»

5a²+2 5a+6b+6b²

25a²+60ab+36b²

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