Answer:
Step-by-step explanation:
The quadratic formula helps us find the roots of a quadratic equation. The equation is:
where
The discriminant is just the part under the square root. This helps tell us if there are two, one, or zero real solutions.
The discriminant is:
We are given the quadratic:
Therefore, a is 9, b is -8, and c is -2.
Solve the exponent.
Multiply 4, 9, and -2.
The discriminant is 136. Since it is a non-zero, positive number, this quadratic has 2 real solutions/zeroes/roots.