Question

Help!!!! What’s an appropriate method to solve 9x^2+3x-2=0??

Answer 1

To solve that use the Quadratic formula.
$ax^{2} + bx + c = 0$
$9 {x}^{2} + 3x - 2 = 0$
Solve using:
$x(1) = \frac{ - b - \sqrt{ {b}^{2} - 4ac} }{2a}$
and
$x(2) = \frac{ - b + \sqrt{ {b}^{2} - 4ac} }{2a}$
Answers are
$x(1) = \frac{1}{3} \\ x(2) = - \frac{2}{3}$