Question

(202)square 2-(198)square 2

Answer 1

Solution :

We know the Identity,

a² - b² = (a + b) (a - b)

Using above Identity, We get

202² - 198² = (202 + 198) (202 - 198)

= 400 × 4

= 1600

Hence,

202² - 198² = 1600

Answer 2

Hey dear!

Here is yr answer.....

=> 202² - 198²

=> (202+198)(202-198)

=> (400)(4)

=> 1600

Hope it hlpz...