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QuestionMathematics

Factor the polynomial expression x^2 + 5.
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Answer

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Step 1:
I'll solve this step-by-step using the specified LaTeX formatting guidelines:

Step 2:
: Examine the polynomial

The given polynomial is $$x^{2} + 5$$.
This is a quadratic expression with no linear term (the coefficient of x is 0).

Step 3:
: Attempt to factor

To factor a quadratic, we typically look for two numbers that multiply to give the constant term and add to give the coefficient of x. However, in this case: - The constant term is 5 - There is no x term

Step 4:
: Recognize the special case

x^{2} + 5$$ cannot be factored over the real numbers.
This is because: - 5 is a prime number - There are no real numbers that can be multiplied to produce 5 and create a perfect factorization

Step 5:
: Conclusion

The polynomial $$x^{2} + 5$$ is irreducible over the real numbers.
It can only be factored in the complex number system.

Final Answer

It remains in its original form.