(99)2 = …………….. A) 1145 B) 8900 C) 9800 D) 9801

1.	(99)2 = …………….. A) 1145 B) 8900 C) 9800 D) 9801
Answer» Question: (99)² = ? Answer: D) 9801 Solution: (99)² can also be written as (100 – 1)² Now apply (a – b)² = a² + b² – 2ab (99)² = (100)² + (1)² - 2(100)(1) = 10000 + 1 - 200 = 9801 *Hope my answer helps you :)* Correct option is D) 9801

Discussion