Question

Using identity solve 200 X 200

Answer 1

Step-by-step explanation:

200×200=40000 is answer I think this answer is useful

Answer 2

200=190+10

200×200=(190+10)×(190+10)

using the identity:-

(a+b)(a+b)=(a+b)²

=(190+10)²

using the identity:-

=a²+2ab+b²

=190²+2×190×10+10²

=36100+3800+100

=36100+3900

=40000

hope it helps you

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