Question 169895
solve equation using the quadratic formula 
1/3x^2 + 2/9x - 1 = 0
Multiply thru by 9 to get rid of the fractions:
3x^2 + 2x - 9 = 0
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x = [-2 +- sqrt(4 - 4*3*-9)]/6
x = [-2 +- sqrt(112)]/6
x = [-2 +- 2sqrt(7)]/6
x = [-1 +- sqrt(7)]/3
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Cheers,
Stan H.