Question

Hi
I will mark as brain list
Please tell me answer of this question in easy way but Step-by-step explanation

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Answer 1

√(a+b)^2 =√289

=(a+b)=17.

√(a-b)^2= √121

(a-b)= 11.

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

=17*11

=187

Answer 2

Ans is 187

Please mark as brain list