Question
Using suitable identities, evaluate the following. $(995)^2$
✓
Answer
$(995)^2$
$= (1000 - 5)^2$
$= (1000)^2+ (5)^2- 2 × 1000 × 5$
$= 1000000 + 25 - 10000$
$= 990025$
$= (1000 - 5)^2$
$= (1000)^2+ (5)^2- 2 × 1000 × 5$
$= 1000000 + 25 - 10000$
$= 990025$
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