Solving a radical equation.......

• Jan 24th 2011, 02:12 PM
redlinethecar
Solving a radical equation.......
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.
• Jan 24th 2011, 02:15 PM
e^(i*pi)
Quote:

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?
• Jan 24th 2011, 02:20 PM
redlinethecar
Sorry, I fixed it. My mind is not working right now
• Jan 24th 2011, 02:48 PM
$\left(\sqrt{x+2}+2\right)^2=\left(\sqrt{x+2}+2\rig ht)\left(\sqrt{x+2}+2\right)$
$=\left(\sqrt{x+2}\right)\left(\sqrt{x+2}\right)+\l eft(\sqrt{x+2}\right)2+2\left(\sqrt{x+2}\right)+2( 2)$
$5^2=25$
$(3+2)^2=(3+2)(3+2)=3(3+2)+2(3+2)=3(3)+3(2)+2(3)+2( 2)$
$=9+6+6+4=25$