Find the discrimanant and the number of real roots for this equation 9x^2+12x+4=0

For this case we have that by definition, the discriminant of a quadratic equation , is given by:

: Two different real roots

: Two equal real roots

: Two different complex roots

If we have , then:

Substituting the values:

Thus, we have two equal real roots.

We have two equal real roots.

19.

step-by-step explanation:

you add the 9 in the tens column since it is a single digit and 9 plus zero is 9 so it is 19