Math Problem Statement

g(x)=x^6-4x^4+3x^2+2; g = 2

Solution

You have the function g(x)=x64x4+3x2+2g(x) = x^6 - 4x^4 + 3x^2 + 2, and you're given g=2g = 2. Let's solve this step by step.

Since g(x)=2g(x) = 2, we substitute 2 for g(x)g(x):

x64x4+3x2+2=2x^6 - 4x^4 + 3x^2 + 2 = 2

Simplifying the equation:

x64x4+3x2+22=0x^6 - 4x^4 + 3x^2 + 2 - 2 = 0

x64x4+3x2=0x^6 - 4x^4 + 3x^2 = 0

Now, let's factor the equation. Start by factoring out x2x^2:

x2(x44x2+3)=0x^2(x^4 - 4x^2 + 3) = 0

This gives two cases to solve:

Case 1: x2=0x^2 = 0

In this case, x=0x = 0.

Case 2: x44x2+3=0x^4 - 4x^2 + 3 = 0

Let u=x2u = x^2, so the equation becomes:

u24u+3=0u^2 - 4u + 3 = 0

This is a quadratic equation. Solve it using the quadratic formula:

u=(4)±(4)24(1)(3)2(1)u = \frac{-(-4) \pm \sqrt{(-4)^2 - 4(1)(3)}}{2(1)}

u=4±16122u = \frac{4 \pm \sqrt{16 - 12}}{2}

u=4±42u = \frac{4 \pm \sqrt{4}}{2}

u=4±22u = \frac{4 \pm 2}{2}

So, u=3u = 3 or u=1u = 1.

Since u=x2u = x^2, we now have:

  • x2=3x^2 = 3, which gives x=±3x = \pm \sqrt{3},
  • x2=1x^2 = 1, which gives x=±1x = \pm 1.

Final Solutions:

The solutions for xx are:

x=0,±1,±3x = 0, \pm 1, \pm \sqrt{3}

Would you like further details or have any questions?

Here are 5 related questions to explore further:

  1. What happens if you change the constant term in the equation?
  2. Can you solve similar equations using different factoring methods?
  3. How does the quadratic formula apply to higher-degree equations?
  4. What are the graphical implications of solving this function?
  5. Can this equation be solved using numerical methods?

Tip: Always try factoring simpler terms before applying advanced techniques like the quadratic formula for efficiency!

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Math Problem Analysis

Mathematical Concepts

Polynomial Equations
Factoring
Quadratic Equations

Formulas

Quadratic equation formula: ax^2 + bx + c = 0
Factoring: x^2(x^4 - 4x^2 + 3)

Theorems

Quadratic Formula
Zero Product Property

Suitable Grade Level

Grades 10-12