SOLUTION: {{{ 5a^2=240}}} solve by taking square roots

Question 313042: solve by taking square roots
Found 2 solutions by Fombitz, rapaljer:
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!

Answer by rapaljer(4671) (Show Source): You can put this solution on YOUR website!
First divide both sides by 5:

Next take the square root of each side in order to "undo" the .

By the way, you don't really need th 0 in the above equation. In algebra.com, that's just the way you have to write it.

Simplify the square root or calculate it with a calculator:

For additional help with simplifying Square Roots, please see own my website by clicking on my tutor name "Rapaljer" anywhere in algebra.com. Then click on the link there to my website. From my Homepage, look for the link "Basic, Intermediate, and College Algebra: One Step at a Time." For help with simplifying Square Roots, look for "Basic Algebra" and look in Chapter 5. See Section 5.01. This is FULL of examples, exercises, and answers to all the exercises. See also the "Math in Living Color" pages where many of these exercises are solved IN COLOR. My own students used to tell me that my explanations are much easier to understand than the traditional textbooks. Perhaps you will like this section.

I also have a video on the topic of Square Roots. To see the video, which by the way is FREE, from my Homepage, look for the link "Rapalje Videos in Living Color." Choose "Basic Algebra" , and look for appropriate video.

I just want to make math easier for people who have trouble with math. It's usually not as hard as everyone thinks it is. The website has a lot of resources--all FREE.

Dr. Robert J. Rapalje, Retired
Seminole State College of Florida
Altamonte Springs Campus

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