Question

If a - b = 2 , also ab = 15. Then find the value of a^2 +b^2 and a^2 -b^2 ??

Answer 1

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Answer 2

a+b=2

Ab=15

Factor of 15 are 3 and 5

5-3=2

So a=5

B=2

So a^2+b^2

5^2+3^2

=25+9=34

a^2-b^2

=5^2-3^2

=25-9

=14