Question

Factorize: 9(2a-b)^2-4(2a-b)-13

Answer 1

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Answer 2

9(2a-b)^2 -4(2a-b)-13

9(2a-b) (2a-b) +9(2a-b) -13(2a-b) -13

9(2a-b) {(2a-b)+1} -13 {(2a-b)+1}

(2a-b+1) (18a -9b-13)