How does this simplification work?

  • #1
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Please check the image below. My algebra is bit rusty. Please explain the second step where the common factor is taken out.
1513701490469-874305.jpg
 

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  • #2
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##\sqrt{x^2 + x} = \sqrt{x^2 + \frac{x^2}x} = \sqrt{x^2(1 + \frac 1 x)}##
Can you work out the rest?
 
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Likes CollinsArg and rishi kesh
  • #3
35
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##\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
 

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