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September 3, 2014

September 3, 2014

Posted by **Teena** on Friday, May 23, 2008 at 9:16pm.

220 + 5 80 - 7 5

Can someone please help me

- algebra -
**Reiny**, Friday, May 23, 2008 at 10:01pmI am going to assume you meant

2√20 + 5√80 - 7√5

= 2*√4*√5 + 5*√16*√5 - 7*√5

= 4√5 + 20√5 - 7√5

= 17√5

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