Question

evaluate(102)(98) using identity

Answer 1

(102)(98)
(100+2)(100-2)
(10000-4)
9996

Answer 2

(100 + 2)(100 - 2)
= (100)² – (2)² [ using a² - b² = (a+ b)(a - b)
= 10000 – 4
= 9996

Hope it'll help...