factorise using identities (2a - b )² - 9 c²
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Solution :-
✪ (2a - b)² - 9c²
➞ (2a - b)² - (3c)²
➞ (2a - b + 3c) (2a - b - 3c)
∴ The answer of this question is (2a - b + 3c) (2a - b - 3c)
Formula used :-
★ a² - b²
➔ (a + b) (a - b)
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