Question

Determine whether the values −1 and 7/3 are solutions to the quadratic equation 3x2−4x−4=3.(1 point)

Only x=−1 is a solution.

Both x=−1 and x=7/3 are solutions.

Neither x=−1 nor x=7/3 is a solution.

Only x=7/3 is a solution.

Answer 1

Both x = −1 and x = 7/3 are solutions.

Check:
- For x = −1: 3(−1)^2 − 4(−1) − 4 = 3 + 4 − 4 = 3.
- For x = 7/3: 3(7/3)^2 − 4(7/3) − 4 = 49/3 − 28/3 − 4 = 7 − 4 = 3.