Question
Evaluate:
$(99)^3$
$(99)^3$
✓
Answer
$(99)^3$
$=(100-1)^3$
$=(100)^3-(1)^3-3(100)^2 \times(1)+3(100)(1)^2$
$=1000000-1-30000+300$
$=1000300-30001$
$=970299$
$=(100-1)^3$
$=(100)^3-(1)^3-3(100)^2 \times(1)+3(100)(1)^2$
$=1000000-1-30000+300$
$=1000300-30001$
$=970299$
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