Find value using appropriate algebraic identities.
99^2
152^2- 148^2
Answers
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Step-by-step explanation:
1) 99² => (100 - 1)²
=> 100² - 2*100*1 + 1² [ (a - b)² = a² - 2ab + b² ]
=> 10000 - 200 + 1
=> 9801
2) 152² - 148² => (152 + 148) (152 - 148)
=> 300 * 4 [ (a² - b² = (a + b)(a - b) ]
=> 1200
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