Use a Vertical Format to Add the Polynomials $$\begin{array} { r } 9 x ^ { 4 } + 2 x ^ { 3 } \\6 x ^ { 4 } + 7 x ^ { 3 } \\\hline\end{array}$$

question 22

Multiple Choice

Use a vertical format to add the polynomials.
- $$\begin{array} { r } 9 x ^ { 4 } + 2 x ^ { 3 } \\6 x ^ { 4 } + 7 x ^ { 3 } \\\hline\end{array}$$

• A) \(15 x ^ { 4 } + 9 x ^ { 3 }\)
• B) \(24 x ^ { 7 }\)
• C) \(15 x ^ { 8 } + 9 x ^ { 6 }\)
• D) \(24 \mathrm { x } ^ { 14 }\)

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Definitions:

Declining Industry

An industry experiencing a long-term drop in output, sales, or employment.

Lagging Technology

Technology that is behind the current standard or trend, often outdated or rendered obsolete by new innovations.

Inelastic Nature

A characteristic of a good or service whose demand does not significantly change with the price.