# How does this simplification work?

Please check the image below. My algebra is bit rusty. Please explain the second step where the common factor is taken out.

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Mark44
Mentor
##\sqrt{x^2 + x} = \sqrt{x^2 + \frac{x^2}x} = \sqrt{x^2(1 + \frac 1 x)}##
Can you work out the rest?

CollinsArg and rishi kesh
##\sqrt{x^2 + x} = \sqrt{x^2 + \frac{x^2}x} = \sqrt{x^2(1 + \frac 1 x)}##
Can you work out the rest?
That really helped.i know how to do rest.thanks:D

berkeman