SOLUTION: Perform the indicated division. Rationalize the denominator, if necessary. Then, simplify. 21+√18 ______ 3

Algebra ->  Equations -> SOLUTION: Perform the indicated division. Rationalize the denominator, if necessary. Then, simplify. 21+√18 ______ 3       Log On


   

Question 680711: Perform the indicated division. Rationalize the denominator, if necessary. Then, simplify. 21+√18
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3

Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
simplify. %2821%2Bsqrt%2818%29%29%2F3
you can write it
%2821%29%2F3 + %28sqrt%2818%29%29%2F3
Factor inside the radical to reveal a perfect square (9)
%2821%29%2F3 + %28sqrt%289%2A2%29%29%2F3
Extract to square root of 9
%2821%29%2F3 + %283%2Asqrt%282%29%29%2F3
Cancel the 3 in both fractions
7+%2B+sqrt%282%29