Question
Using the formula for squaring a binomial, evaluate the following:
$ (82)^2$
$ (82)^2$
✓
Answer
$(82)^2$
$=(80+2)^2$
$=(80)^2+2 \times 80 \times 2+(2)^2$
$=6400+320+4$
$=6724$
$=(80+2)^2$
$=(80)^2+2 \times 80 \times 2+(2)^2$
$=6400+320+4$
$=6724$
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