Question

Evaluate: (502)^2 - (498)^2.

Answer 1

hii, here is your answer..

$502 {}^{2} - 498 {}^{2}$
(502-498) (502+498)
4 × 1000
4000

identify used:a^2-b^2= (a-b)(a+b)


hope this helps:)

Answer 2

a^2-b^2=(a+b)(a-b)
(502-498)(502+498)
Will be ur ans