Saturday

November 22, 2014

November 22, 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.

**Answer this Question**

**Related Questions**

algebra 2 - how do you solve this? -2square root7-4square root7

math - 5 ----- 8+root7 please help me simplify

Algebra - multiply(square root5 +1)(8 square root5 +1)

Algebra - Please Simplify: Having problems with this, and have many more to do. ...

math - 5/11+root5 How would I rationalize this I think it would be - Multiply ...

algebra1 - there are 2 more i needed help with/checked. i had to simplify sq....

math - Q.1)Find hcf and lcm of the following using fundamntal theorem of ...

Math - Please Simplify: (root5 a^7/2)^4 a^3/a^8 I am having a hard time figuring...

Algebra - Please Simplify: (root5 a^7/2)^4 a^3/a^8 So confused, I tried figuring...

algebra - I'm sorry I don't know how to put in the square root sign...I hope you...