Question

Simply by removing factors of 1

q^2-25/(q+5)^2

Answer 1

q+5 is a factor of both numerator and denomimator. You can cancel it out.

q^2-25 = (q+5)(q-5)

Answer 2

Thank you

Answer 3

You're welcome. I hope you got the answer to be
(q-5)/(q+5)