Solving a radical equation.......

**redlinethecar** · January 24th 2011, 01:12 PM

I cannot figure this part out for the life of me. I have it written in the picture so hopefully it's readable. Please let me know if you need another picture.

$Solving a radical equation.......-math.jpg$ $Click image for larger version. Name: math.jpg Views: 14 Size: 394.6 KB ID: 20580$

**e^(i*pi)** · January 24th 2011, 01:15 PM

Originally Posted by redlinethecar

I cannot figure this part out for the life of me. I have it written in the picture so hopefully it's readable. Please let me know if you need another picture.

What picture?

**redlinethecar** · January 24th 2011, 01:20 PM

Sorry, I fixed it. My mind is not working right now

**Archie Meade** · January 24th 2011, 01:48 PM

$\left(\sqrt{x+2}+2\right)^2=\left(\sqrt{x+2}+2\rig ht)\left(\sqrt{x+2}+2\right)$

$=\left(\sqrt{x+2}\right)\left(\sqrt{x+2}\right)+\l eft(\sqrt{x+2}\right)2+2\left(\sqrt{x+2}\right)+2( 2)$

just as

$5^2=25$

$(3+2)^2=(3+2)(3+2)=3(3+2)+2(3+2)=3(3)+3(2)+2(3)+2( 2)$

$=9+6+6+4=25$

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