Question 97581
sqrt( 14 ) + sqrt(2/7) 
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Rationalize sqrt(2/7)
sqrt(2/7) = sqrt(2*7/7*7)= (1/7)sqrt(14)
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So your problem becomes:
sqrt(14) + (1/7)sqrt14

= (8/7)sqrt(14)
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Cheers,
Stan H.