Find the discriminant and the number of real roots for this equation.

9x2 + 12x + 4 = 0

discriminant = 0

The real root - 2/3

Step-by-step explanation:

The formula for discriminant : b^2 - 4ac

12^2 (-4) * 9*4 = 144 - 144 ➡ discriminant = 0 this means the roots is a repeated real number, which means there's only one solution

(3x + 2) * (3x + 2) = 0

3x + 2 = 0

x = - 2/3