How can I use the quadratic formula to solve the equation 5x + 6x² + 3 = 0, and what are the values of x?

Solving the Quadratic Equation: 5x + 6x² + 3 = 0

To solve the quadratic equation 5x + 6x² + 3 = 0, we first need to rearrange it in the standard form:

6x² + 5x + 3 = 0

The quadratic formula is given by:

x = (-b ± √(b² – 4ac)) / 2a

In this formula:

  • a is the coefficient of (which is 6),
  • b is the coefficient of x (which is 5),
  • c is the constant term (which is 3).

Now, we will first calculate the discriminant (b² – 4ac):

b² – 4ac = 5² – 4(6)(3)

= 25 – 72 = -47

Since the discriminant is negative, it indicates that there are no real solutions to this quadratic equation; instead, we will have complex solutions.

Now, let’s substitute the values of a, b, and c into the quadratic formula:

x = (-5 ± √(-47)) / (2 * 6)

We can simplify this as:

x = (-5 ± i√47) / 12

Thus, the two complex solutions for x can be expressed as:

  • x₁ = (-5 + i√47) / 12
  • x₂ = (-5 – i√47) / 12

In conclusion, the solutions to the equation 5x + 6x² + 3 = 0 are:

x₁ = (-5 + i√47) / 12 and x₂ = (-5 – i√47) / 12

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