SOLUTION: how do I factor (p+q)squared-2(p+q)-15 thank you!

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Question 290118: how do I factor
(p+q)squared-2(p+q)-15
thank you!
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
(p+q)^2-2(p+q)-15
Think of (p+q) as x
x^2-2x-15
(x-5)(x+3)
(p+q-5)(p+q+3)
(p+q)^2-2(p+q)-15
You could work it out to
p^2+2pq-2p+q^2-2q-15
But either way you get
(p+q-5)(p+q+3)