SOLUTION: numerator 4 denominator -2+sqrt7

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Question 117095: numerator 4
denominator -2+sqrt7

Answer by ptaylor(2198)   (Show Source): You can put this solution on YOUR website!
numerator 4
denominator -2+sqrt7

multiply numerator and denominator by--the conjugate of . This will get rid of the radical in the denominator.
and this equals
which equals
or


Hope this helps---ptaylor

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