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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