SOLUTION: simplify square root of 68+square root of 28-square root of 1/7 pls pls solve this for me

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Question 212530: simplify square root of 68+square root of 28-square root of 1/7
pls pls solve this for me
Answer by drj(1380) About Me  (Show Source):
You can put this solution on YOUR website!
Simplify the following:


sqrt%2868%29%2Bsqrt%2828%29-sqrt%281%2F7%29.

Multiply sqrt%287%29 to get rid of denominator in last term and then simplify.

note that 68=4*17 28=4*7 and sqrt%284%29=2

sqrt%287%29%28sqrt%2868%29%2Bsqrt%2828%29-sqrt%281%2F7%29%29=

sqrt%287%29sqrt%2817%2A4%29%2Bsqrt%287%29sqrt%284%2A7%29-sqrt%287%29%2Fsqrt%287%29=

2sqrt%287%2A17%29%2B2sqrt%287%2A7%29-1=

2sqrt%28119%29%2B2%2A7-1=

2sqrt%28119%29%2B13

I hope the above steps were helpful.

Good luck in your studies!

Respectfully,
Dr J

For free Step-By-Step Videos on Introduction to Algebra, please visit http://www.FreedomUniversity.TV/courses/IntroAlgebra.