Math Problem Statement

x^2+3x+1=0

Solution

You have the quadratic equation:

x2+3x+1=0x^2 + 3x + 1 = 0

We can solve this using the quadratic formula:

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

For your equation x2+3x+1=0x^2 + 3x + 1 = 0, the coefficients are:

  • a=1a = 1
  • b=3b = 3
  • c=1c = 1

Now, substitute these values into the quadratic formula:

x=3±324(1)(1)2(1)x = \frac{-3 \pm \sqrt{3^2 - 4(1)(1)}}{2(1)}

x=3±942x = \frac{-3 \pm \sqrt{9 - 4}}{2}

x=3±52x = \frac{-3 \pm \sqrt{5}}{2}

Thus, the two solutions are:

x=3+52orx=352x = \frac{-3 + \sqrt{5}}{2} \quad \text{or} \quad x = \frac{-3 - \sqrt{5}}{2}

These are the exact solutions to the equation.

Would you like to explore more details or check something else about this equation?

Here are 5 related questions you might find interesting:

  1. How do you complete the square to solve a quadratic equation?
  2. How can you graph a quadratic equation like x2+3x+1=0x^2 + 3x + 1 = 0?
  3. What is the discriminant, and what does it tell you about the solutions?
  4. How do you solve a quadratic equation by factoring?
  5. What is the significance of the coefficients aa, bb, and cc in a quadratic equation?

Tip: The discriminant (b24acb^2 - 4ac) tells you how many real solutions there are. If it's positive, there are two real solutions; if it's zero, there is exactly one real solution; if it's negative, the solutions are complex.

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Math Problem Analysis

Mathematical Concepts

Algebra
Quadratic Equations
Solving Quadratic Equations
Discriminants

Formulas

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

Theorems

Quadratic formula

Suitable Grade Level

Grades 8-10