SOLUTION: How do i solve this problem? 1/5r^2-2=5/6 The book says its 510/6, but i keep getting 85/6. What am I doing wrong?

SOLUTION: How do i solve this problem? 1/5r^2-2=5/6 The book says its 510/6, but i keep getting 85/6. What am I doing wrong?

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Question 576318: How do i solve this problem? 1/5r^2-2=5/6
The book says its 510/6, but i keep getting 85/6. What am I doing wrong?
Answer by vleith(2983) (Show Source): You can put this solution on YOUR website!
You are almost there. You are probably getting

But your answer needs to be rationalized (it should not have a square root in its denominator

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