Question

Can someone please help me by solving this
no spam please
$9(2a−b)2−4(2a−b)−13$
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Answer 1

Step-by-step explanation:

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

(18a-9b)2-4(2a-b)-13

36a-18b-8a+4b-13

36a-8a-18b+4b-13

=28a-14b-13

that's your answer.

no spam there I simply solved it.

if you like the answer, can you follow me.

thnx for asking such type of question.