Question

$9(a - 2b) ^{2} { + }6(2b - a)$
solve this step by step​

Answer 1

Answer:

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

=3 (a-2b) {3(a-2b) +2(-1)}

=3(a-2b){3a-6b-2}

=3(a-2b)(3a-6b-2) (ans)....

Answer 2

Step-by-step explanation:

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