Question

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

Answer 1

in short by assuming

5-3=2 nd 5×3 =15 thus we know that a=5 nd b=3

so, a^2 - b^2= 5^2 - 3^2

=25 - 9

=16