How to solve the 9th sum of this identities worksheet
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Look at it carefully, it is in the form of (a+b) ^2
So simply, use the formula and expand it...
Hope it helps!!!
So simply, use the formula and expand it...
Hope it helps!!!
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Answered by
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(4a +9)^2
so , the formula is a^2 +2ab+b^2
now, 4a^2+2×4a×9b +9b^2
》》》》 16a^2+72ab+81b^2
this is ur answer
plz mark me as brainlist
so , the formula is a^2 +2ab+b^2
now, 4a^2+2×4a×9b +9b^2
》》》》 16a^2+72ab+81b^2
this is ur answer
plz mark me as brainlist
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