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December 20, 2014

December 20, 2014

Posted by **katelynn** on Thursday, February 16, 2012 at 8:13pm.

- algebra1 -
**MathGuru**, Friday, February 17, 2012 at 7:28pmI'm going to assume your problem is this:

2√20 - 3√7 - 2√5 + 4√63

√20 breaks down to √5*2*2

√63 breaks down to √7*3*3

Therefore:

2√20 becomes 4√5

4√63 becomes 12√7

Now we have:

4√5 - 3√7 - 2√5 + 12√7

Combine like terms and simplify:

2√5 + 9√7

That is as far as you can go.

I hope this helps and is what you were asking.

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