Question

Evaluate 98² using v(a-b)² identity. I got 9604 as answer. I don't know whether it is correct or not. ​

Answer 1

Answer:

9604

Step-by-step explanation:

We can write (98)^2 as ( 100 - 2)^2

Therefore it is our (a-b) ^2 Identity!

So, (100-2)^2 = (100)^2 + (2)^2 - 2(100)(2)

= 10000 + 4 - 400

Which is equal to

=10004-400 = 9604

Therefore 98^2 = 9604

Kindly mark as brainliest!

Answer 2

982 = (100 - 2)2

= 1002 - 2 × 100 × 2 + 22

= 10000 - 400 + 4 = 9604

HOPE THIS IS USEFUL FOR U HIT A THANKS