Question

Factorise: (2a+1)^2 - 9b^4

Answer 1

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Answer 2

(2a + 1)^2 - 9b^4
(2a + 1)^2 - (3b^2)^2
(2a + 1 +3b^2)(2a + 1 - 3b^2)
This is the factorised answer