Factorize each of the following expression:

Question:

Factorize each of the following expression:
64 − (a + 1)2

Solution:

$64-(a+1)^{2}$

$=(8)^{2}-(a+1)^{2}$

$=[8-(a+1)][8+(a+1)]$

$=(8-a-1)(8+a+1)$

$=(7-a)(9+a)$

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