Solve x2 + 4x + 1 = 0. a) x equals the quantity of 4 plus or minus square root 12 all over 2 b) x equals negative 4 plus or minus square root 3 c) x equals negative 2 plus or minus square root 3 d) x equals the quantity of 4 plus or minus square root 13 all over 2

Option C (±)

Step-by-step explanation:

1. To solve this problem you must use the Quadratic formula, which is used to solve quadratic equation. This formula is shown below:

2. Substitute values. Then, you have:

3. Then,you obtain the following result:

±

72 is the answer to this problem