Question

If a^{2}-b^{2} =275,a+b=25 find a-b

Answer 1

Let a=18
b=7
Then,a^2-b^2=275.
a+b=25
a-b=18-7=11

Answer 2

hello....

As we know that
$(a + b)(a - b) = {a}^{2} - {b}^{2}$
here ...

a^2 - b^2 = 275
(a + b )(a - b) = 275
25 ( a - b) =275
(a - b) = 275/25.

Hence ( a - b) = 11




hope it helps
#jerri