Question

Factorise :- (3a-b)² - 4(3a-2b) + 4
please explain step by step​

Answer 1

Answer:

(3a-b)² - 4(3a-b) + 4

(3a-b)² - 2(3a-b) × 2²

(3a-b-2)²

Step-by-step explanation:

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