Math Problem Statement

3x^+8x+4=0

Solution

It seems there is a typo in the equation you've written. Did you mean:

3x2+8x+4=03x^2 + 8x + 4 = 0?

If so, this is a quadratic equation. We can solve it using the quadratic formula:

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

For the equation 3x2+8x+4=03x^2 + 8x + 4 = 0, the coefficients are:

  • a=3a = 3
  • b=8b = 8
  • c=4c = 4

Now, let's calculate the discriminant Δ=b24ac\Delta = b^2 - 4ac and then solve for xx. I'll do the math for you.

Δ=824(3)(4)=6448=16\Delta = 8^2 - 4(3)(4) = 64 - 48 = 16

Now, applying the quadratic formula:

x=8±162(3)=8±46x = \frac{-8 \pm \sqrt{16}}{2(3)} = \frac{-8 \pm 4}{6}

So the two solutions are:

x1=8+46=46=23x_1 = \frac{-8 + 4}{6} = \frac{-4}{6} = -\frac{2}{3}

x2=846=126=2x_2 = \frac{-8 - 4}{6} = \frac{-12}{6} = -2

Thus, the solutions are:

x1=23,x2=2x_1 = -\frac{2}{3}, \quad x_2 = -2

Would you like more details, or do you have any questions?

Here are 5 related questions you might want to explore:

  1. How do we know when to use the quadratic formula?
  2. What does the discriminant tell us about the nature of the solutions?
  3. Can quadratic equations always be solved using factoring instead of the quadratic formula?
  4. How can we graph the quadratic function y=3x2+8x+4y = 3x^2 + 8x + 4?
  5. What are some real-life applications of quadratic equations?

Tip: Always check the discriminant before applying the quadratic formula to see if the equation has real or complex solutions!

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Math Problem Analysis

Mathematical Concepts

Algebra
Quadratic Equations
Discriminant

Formulas

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

Theorems

Quadratic Formula
Discriminant Theorem

Suitable Grade Level

Grades 8-10