(a) Factor the expression $12 x^2 + 25 x + 12$. If it cannot be factored, enter NONE.
help (formulas)

(b) Solve the equation $12 x^2 + 25 x + 12 = 0$. If there is more than one correct answer, enter your answers as a comma separated list. If there are no solutions, enter NONE.
$x$ = help (numbers)