Factorise the following
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Question :-
- 4a² - 4b² + 4a + 1
Answer :-
➙ 4a² - 4b² + 4a + 1
➻ (4a² + 4a + 1) - 4b²
➻ {(2a)² + 2 × 2a × 1 + (1)²} - (2b)² [a² + 2ab + b² = (a + b)²
➻ (2a + 1)² - (2b)² [a² - b² = (a + b) (a - b) ]
➻ (2a + 1 + 2b) (2a + 1 - 2b)
➻ (2a + 2b + 1) (2a - 2b + 1)
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please brainliest
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