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Can anyone simplify or solve this problem for me? I have been stuck on this problem for days now.

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1 Answer

Multiply the numerator and denominator by √8 + 3
 
Num:  √18 ( √8 + 3 ) = √144 + 3√18 = 12 + 3√9√2 = 12 + 3*3√2 = 12 + 9√2
 
Den:  ( √8 -3 )(√8 + 3) = √8√8 -3√8 + 3√8 - 9 = 8 - 9 = -1
 
(12 + 9√2 )/(-1) = -(12+ 9√2 )
 
 
J.T.