Question

389^2-161^2 find of using identities​

Answer 1

identify a2-b2

(a+b)(a-b)

(389+161)(389-161)

550*228

125,400

Answer 2

Here we can use the algebraic identity-

a^2-b^2= (a+b)(a-b)

So

389^2 - 161^2 = (389+161)(389-161)

(550)(228) = 125400

here is your answer.

hope it may help you.