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February 28, 2015

February 28, 2015

Posted by **Zack** on Friday, January 18, 2013 at 12:36pm.

sqrt80 -3 Sqrt63 - sqrt125 - sqrt175

- Algebra 2 -
**Steve**, Friday, January 18, 2013 at 12:54pm√80 = √16√5 = 4√5

3√63 = 3*√9√7 = 3*3√7 = 9√7

√125 = √25√5 = 5√5

√175 = √25√7 = 5√7

so, you have

4√5-9√7-5√5-5√7 = -√5 - 14√7

- Algebra 2 -
**Reiny**, Friday, January 18, 2013 at 12:55pm√80 - 3√63 - √125 - √175

=√16√5 - 3√9√7 + √25√5 - √25√7

= 4√5 - 9√7 + 5√5 - 5√7

= 9√5 - 14√7

- Go with Steve - Algebra 2 -
**Reiny**, Friday, January 18, 2013 at 12:57pmArgghh, messed up a sign

Steve is right

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