SOLUTION: Can someone help me solve this Quadratic Equation by square root? If you could do it step-by-step I would appreciate but if it's too much work then it's okay, just don't bother.

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons -> SOLUTION: Can someone help me solve this Quadratic Equation by square root? If you could do it step-by-step I would appreciate but if it's too much work then it's okay, just don't bother.       Log On


   

Question 1087543: Can someone help me solve this Quadratic Equation by square root? If you could do it step-by-step I would appreciate but if it's too much work then it's okay, just don't bother.
3x² + 1 = 58
Also for this certain question my teacher has stated "(round your answers to the nearest hundredths place)".
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
3x² + 1 = 58
subtract 1 from each side
3x^2 = 57
divide both sides by 3
x^2 = 57/3
x^2 = 19
find the square root of both sides
x = +/-sqrt%2819%29
x = +4.36
x = -4.36