I just cant seem to get it. i know its simple, but i keep geting lost with the exponents, could anyone help?
so for the top part, (a-b) = m and (a+b) would be n, so you would get(a-b)(a+b)/x^b^2
which would give you $\displaystyle x^(a^2 - b^2)$
so would the answer be x^a^2 because there would be 2 x^b^2, both in the divisor and divident, so it would cancel it out?