Question 1031442
I suppose you mean to solve for (1/3)x^2+3x-18 = 0
Multiply each side by 3
x^2 + 9x -54 = 0
This does not factor.
By formula we get:
{{{-(9/2)-(3*sqrt(33))/2}}}
{{{-(9/2)+(3*sqrt(33))/2}}}