Q6 of 59 Page 162

Use appropriate formulae and compute:

(96)2

(96)2 = (100-4)2


We use (a - b)2 = a2- 2ab + b2


⇒ (96)2 = 1002-2× 100× 4 + 42


⇒ (96)2 = 10000-800 + 16 = 9216


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