Answer :

To analyze the polynomial [tex]\( x^4 + 9x^2 + 81 \)[/tex], let's break down the expression step by step.

1. Understand the Polynomial:

The given polynomial is [tex]\( x^4 + 9x^2 + 81 \)[/tex]. This is a fourth-degree polynomial as the highest degree of [tex]\( x \)[/tex] is 4.

2. Identify the Structure:

The polynomial can be written in terms of powers of [tex]\( x \)[/tex]. Specifically, we have terms involving [tex]\( x^4 \)[/tex], [tex]\( x^2 \)[/tex], and a constant term (81). Notably, the polynomial can be rewritten as:
[tex]\[ x^4 + 9x^2 + 81 \][/tex]

3. Attempt to Factorize:

Let's see if the polynomial can be factorized. A common technique is to look for patterns or use algebraic identities. Here, let's consider the expression as a quadratic in terms of [tex]\( y \)[/tex], where [tex]\( y = x^2 \)[/tex]:
[tex]\[ y^2 + 9y + 81 \][/tex]
Rewriting yields:
[tex]\[ (x^2)^2 + 9(x^2) + 81 \][/tex]

4. Check for Roots or Factoring Possibilities:

We need to see if there exist any easy-to-find factors or roots using standard methods. However, this polynomial does not factor easily into simpler polynomials with integer or rational coefficients.

5. Convert back to Original Variable:

Converting back to the original variable [tex]\( x \)[/tex], we reaffirm that the polynomial remains:
[tex]\[ x^4 + 9x^2 + 81 \][/tex]

6. Conclusion:

The polynomial given, [tex]\( x^4 + 9x^2 + 81 \)[/tex], stands in its simplest form for regular factorization and may require advanced techniques beyond typical high school algebra to factor further.

Thus, the polynomial [tex]\( x^4 + 9x^2 + 81 \)[/tex] is analyzed and remains in its given form.