Question

How many real-number solutions does the equation have?

-9x^2+10x+2=0

Answer 1

use the quadratic equation
\[\frac{ -b \pm \sqrt{b ^{2}-4ac} }{ 2a }\]

Answer 2

which ones would be a b and c?

Answer 3

if your descriminant \[\sqrt{b ^{2}-4ac}\] is a positive value then you have a real value. If not the value is imaginary

a,b,c correspond to the values of the form
\[ax ^{2}+bx+c=0\]