Evaluate 699² using the identity (a + b)² = (a² + b² + 2ab).
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4
Answer:
( a-b)² =a² - 2ab + b²
699²
(700-1)²= (700)² -2(700)(1) +(1)
490000-1400+1
488601 Ans
Explanation:
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0
Answer:
988601
Explanation:
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