# Simplifying Radicals

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• April 17th 2012, 06:45 PM
ihatemath123
Simplifying Radicals
Hello, could any one here give me a step by step on how to solve this problem?

sqrt( 4x^2 + 8x + 4 )

I know the answer is 2x+2, I just don't know how to do it.
• April 17th 2012, 07:23 PM
ihatemath123
Re: Simplifying Radicals
nvm, i figured it out. it was just like solving the problem without the square root. stupid me lol.
• April 17th 2012, 07:37 PM
highvoltage
Re: Simplifying Radicals
• April 17th 2012, 07:42 PM
ihatemath123
Re: Simplifying Radicals
Ah ok much clear explanation. Thank you very much!
• April 17th 2012, 07:45 PM
ihatemath123
Re: Simplifying Radicals
Another problem i need help with

f(x)=3√(2x-6)

not sure if that's how i write the 3 part lol.
• April 17th 2012, 07:49 PM
Prove It
Re: Simplifying Radicals
Quote:

Originally Posted by ihatemath123
Another problem i need help with

f(x)=3√(2x-6)

not sure if that's how i write the 3 part lol.

Is this \displaystyle \begin{align*} \sqrt[3]{2x-6} \end{align*}? If so, it doesn't simplify...