Answer
$(6v+5)(6v-5)$
Work Step by Step
$36v^{2}-25=$
...write each term as a square.
$=(6v)^{2}-5^{2}$
...factor using the rule for a difference of two squares.
($a^{2}-b^{2}=(a+b)(a-b),\ a=6v,\ b=5$)
$=(6v+5)(6v-5)$
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