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QuestionMathematics

Expand and simplify: (x+ 4)2
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Answer

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Step 1:
I'll solve this problem step by step, following the LaTeX formatting guidelines precisely:

Step 2:
: Identify the Problem

We need to expand the expression $$(x+4)^{2}$$ using the binomial expansion.

Step 3:
: Recall the Binomial Expansion Formula

The general form for squaring a binomial $$(a+b)^{2}$$ is:
$(a+b)^{2} = a^{2} + 2ab + b^{2}

Step 4:
: Apply the Formula to Our Specific Problem

(x+4)^{2} = x^{2} + 2(x)(4) + 4^{2}
Substituting these values:

Step 5:
: Simplify the Expansion

= x^{2} + 2(4x) + 16
= x^{2} + 8x + 16

Final Answer

Key Insights: - The expansion follows the $(a+b)^{2} = a^{2} + 2ab + b^{2}$ pattern - Each term is simplified systematically - The result is a quadratic expression in standard form