Posted by Anonymous on .
Select the approximate values of x that are solutions to f(x) = 0, where
f(x) = 9x2 + 2x + 6.
a) {0.71, 0.94}
b) {9,2}
c) {0.22, 0.67}
d) {1.50, 0.33}

algebra 
MathMate,
You can use the same reasoning as the answer to your previous post.