Question

Using identity evaluate (389) (389)​

Answer 1

Answer:

(a+b)(a-b)

(389+161)(389-161)

550*228

125,400

Answer 2

Answer:

the ans will be like that

(400 -11)^2

= 400^2 - 2 × 400 × 11 + 11^2

using identity ( a- b ^2 = a^2 - 2ab+ b^2 )

= 160000 - 8800 + 121

= 151200 + 121

= 151321

THIS IS UR ANS MATE

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