Question
Using suitable identities, evaluate the following. $52 \times 53$
✓
Answer
$52 \times 53$
$= (50 + 2)(50 + 3)$
$= (50)^2+ (2 + 3)50 + 2 × 3$
$= 2500 + 250 + 6$
$= 2756$
$= (50 + 2)(50 + 3)$
$= (50)^2+ (2 + 3)50 + 2 × 3$
$= 2500 + 250 + 6$
$= 2756$
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