SOLUTION: Please show me your work. Solve for x 3x^2+4x-1

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Question 1078636: Please show me your work. Solve for x
3x^2+4x-1
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
3x^2+4x-1=0
x=(1/6)(-4+/- sqrt (16+12); sqrt (28)=2 sqrt (7)
x=(1/3)(-2 +/- sqrt (7)
numerically, this is -1.55 and 0.22
graph%28300%2C300%2C-10%2C10%2C-10%2C10%2C3x%5E2%2B4x-1%29