Without actual multiplication calculate each of the following (97)2 (102)
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Step-by-step explanation:
(97)²
(100-3)²
(100)² + (3)² - 2×100×3
10000 + 9 - 600
9409
(102)²
(100+2)²
(100)² + (2)² + 2×100×2
10000 + 4 + 400
10404
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