SOLUTION: Solve for x in this equation: x^2-5=8-2x^2

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Question 1097367: Solve for x in this equation: x^2-5=8-2x^2
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
x^2-5=8-2x^2
3x^2-13=0
3x^2=13
x^2=13/3
x=+/-sqrt(39)/3
Numerically 2.08
check
2.08^2-5=-0.67
8-2(2.08^2)=-0.65. These are equivalent given rounding. sqrt(39)/3 is the exact answer