Question

9 (a-2b)^2 + 6 (2b-a) = ?

Answer 1

Ans.

9 (a-2b)^2 +6 (2b-a)

9 ( a^2 +4b^2 + 4ab ) + 12b -6a

9a^2 + 36b^2 + 36ab + 12b - 6a

Answer 2

Explanation:

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