Math, asked by manishaajitmore83, 3 months ago

expand using suitable identities 1/4a-1/2b+1 explain last step

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Answered by vanshikamunjal5

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Answer:

Here identity used is (a+b+c)^2

In last step they have squared the numbers.

Like in (1/4a)^2...ans is a2/16

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