To find the solutions to the quadratic equation 4x² + 3x – 24 = 0, we can use the quadratic formula:
x = (-b ± √(b² – 4ac)) / (2a)
Here, the coefficients are:
- a = 4
- b = 3
- c = -24
Now, we need to calculate the discriminant, which is the part under the square root in the quadratic formula:
b² – 4ac = (3)² – 4(4)(-24)
Calculating that gives us:
9 + 384 = 393
Since the discriminant is positive (393 > 0), we can conclude that there are two real and distinct solutions.
Now, substituting the values of a, b, and the discriminant back into the quadratic formula:
1. First solution:
x₁ = [−3 + √393] / (2 * 4)
x₁ = [−3 + 19.84] / 8
x₁ ≈ 2.23
2. Second solution:
x₂ = [−3 − √393] / (2 * 4)
x₂ = [−3 – 19.84] / 8
x₂ ≈ -2.73
So, the solutions to the equation 4x² + 3x – 24 = 0 are approximately:
- x ≈ 2.23
- x ≈ -2.73
In summary, by applying the quadratic formula to the given equation, we found two distinct real solutions that can be of great interest to anyone seeking to solve quadratic equations!