(100+9)², (100+9)³, (1000-2)³
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Step-by-step explanation:
(100+9)²=100²+2×100×9+9²=10000+1800+81=11881
(100+9)³=100³+9³+3×100²×9+3×3×9²×100
=1000000+81+270000+24300
=1294381
(1000-2)³=1000³-2³-3×1000²×2+3×2²×1000
1000000000-8-6000000+12000
994011992
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