Question
Solve:
$36 L^2-(m+n)^2$
$36 L^2-(m+n)^2$
✓
Answer
$36 L^2-(m+n)^2$
$=(6 L)^2-(m+n)^2$
$=[6 L-(m+n)][6 L+(m+n)]$
$=(6 L-m-n)(6 L+m+n)$
$=(6 L)^2-(m+n)^2$
$=[6 L-(m+n)][6 L+(m+n)]$
$=(6 L-m-n)(6 L+m+n)$
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