Math Problem Statement

3x^2 - 3x - 4 = 0

Solution

The equation in the image is:

3x23x4=03x^2 - 3x - 4 = 0

This is a quadratic equation in the form ax2+bx+c=0ax^2 + bx + c = 0, where:

  • a=3a = 3
  • b=3b = -3
  • c=4c = -4

We can solve this quadratic equation using the quadratic formula:

x=b±b24ac2ax = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}

Substituting the values of aa, bb, and cc into the formula:

x=(3)±(3)24(3)(4)2(3)x = \frac{-(-3) \pm \sqrt{(-3)^2 - 4(3)(-4)}}{2(3)}

Simplifying step by step:

x=3±9+486x = \frac{3 \pm \sqrt{9 + 48}}{6} x=3±576x = \frac{3 \pm \sqrt{57}}{6}

So the solutions are:

x=3+576orx=3576x = \frac{3 + \sqrt{57}}{6} \quad \text{or} \quad x = \frac{3 - \sqrt{57}}{6}

These are the exact solutions to the quadratic equation.

Would you like more details or have any questions about the solution?

Here are some related questions to consider:

  1. How would the solution change if the quadratic equation had different coefficients?
  2. What is the significance of the discriminant b24ac\sqrt{b^2 - 4ac} in the quadratic formula?
  3. How can this quadratic equation be factored, if possible?
  4. What are the properties of the roots in a quadratic equation with a negative discriminant?
  5. How do the roots of this equation relate to the graph of the function y=3x23x4y = 3x^2 - 3x - 4?

Tip: When solving quadratic equations, always check if the equation can be factored easily before using the quadratic formula. This can sometimes save time!

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Math Problem Analysis

Mathematical Concepts

Algebra
Quadratic Equations

Formulas

Quadratic formula: x = (-b ± √(b² - 4ac)) / 2a

Theorems

Quadratic formula

Suitable Grade Level

Grades 9-11