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) $24 \mathrm { x } ^ { 14 }$

Question

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) $24 \mathrm { x } ^ { 14 }$

Quizplus · Accepted Answer

When adding polynomials vertically, you combine like terms. Here, $9x^4 + 6x^4 = 15x^4$ and $2x^3 + 7x^3 = 9x^3$, resulting in $15x^4 + 9x^3$.

Use a Vertical Format to Add the Polynomials 9x4+2x36x4+7x3\begin{array} { r } 9 x ^ { 4 } + 2 x ^ { 3 } \\6 x ^ { 4 } + 7 x ^ { 3 } \\\hline\end{array}9x4+2x36x4+7x3​​

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