Question
Find the square of $86$
✓
Answer
$86 = 80 +6$
Therefore, $86^2= (80 + 6)^2$
$= 6400 + 480 + 480 +36$
$= 7396$
Therefore, $86^2= (80 + 6)^2$
$= 6400 + 480 + 480 +36$
$= 7396$
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