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QuestionMathematics

Use the grouping method to factor x^3 +x^2 + 3x+ 3.
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Step 1:
I'll solve this polynomial factorization problem step by step using the grouping method:

Step 2:
: Rearrange the polynomial terms

First, let's write out the original polynomial: $$x^{3} + x^{2} + 3x + 3

Step 3:
: Group the first two and last two terms

\left(x^{3} + x^{2}\right) + \left(3x + 3\right)

Step 4:
: Factor out the common factor from the first group

x^{2}\left(x + 1\right) + 3\left(x + 1\right)

Step 5:
: Identify the common factor

Notice that $\left(x + 1\right)$ is now a common factor in both groups.

Step 6:
: Factor out the common factor

\left(x + 1\right)\left(x^{2} + 3\right)

Final Answer

Key Insights: - The grouping method works by finding a common factor across grouped terms - In this case, $\left(x + 1\right)$ was the key to successful factorization - The polynomial cannot be factored further over the real numbers