Math Problem Statement

Find all values of x that are NOT in the domain of the function g(x) = (x - 3) / (x^2 - 4).

Solution

The function given in the image is:

g(x)=x3x24g(x) = \frac{x - 3}{x^2 - 4}

To determine the values of xx that are NOT in the domain of the function, we need to find where the denominator is zero because division by zero is undefined.

The denominator is x24x^2 - 4. We set this equal to zero and solve for xx:

x24=0x^2 - 4 = 0 x2=4x^2 = 4 x=±2x = \pm 2

So, the values of xx that are not in the domain of the function are x=2x = 2 and x=2x = -2.

Final Answer:

x=2,2x = -2, 2

Let me know if you'd like further details or have any questions!

Related Questions:

  1. What is the general definition of the domain of a function?
  2. Why can't functions include values that cause division by zero?
  3. How do we solve equations involving quadratic expressions like x24=0x^2 - 4 = 0?
  4. Can this function have any other restrictions on its domain besides division by zero?
  5. What is the significance of the numerator in this function?

Tip:

Always check the denominator of a rational function first to find where the function is undefined.

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Math Problem Analysis

Mathematical Concepts

Algebra
Rational Functions
Domain of a Function

Formulas

Finding domain: Set the denominator not equal to zero.

Theorems

Zero Product Property

Suitable Grade Level

Grades 9-11