Question

Factorise:
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Answer 1

$8(a - 2b {)}^{2} - 2a + 4b - 1 \\ 8(a - 2b {)}^{2} - 2(a - 2b) - 1 \\ 8 - 2 - 1(a - 2b) \\ 8 - 3(a -2b) \\ 5(a - 2b) \\ 5a - 2b \\ is \: the \: ans \: plzzz \: follow \: me \: and \: mark \: me \: brainliest$