What's the sum of 3x^2 and 7x squared?
\(3x^2+7x\) \(Factor\) \(Greatest \ Common \ Factor \ (GCF) = x\) \(Factor \ out \ the \ GCF\) \(x( \dfrac{3x^2}{x} + \dfrac{7x}{x})\) \(Divide \ each \ term \ by \ the \ GCF\) \(x(3x+7)\)