Perform the indicated operations and simplify.
-$$\left( 8 x ^ { 5 } + 9 x ^ { 4 } \right) + \left( 5 x ^ { 5 } - 3 x ^ { 4 } \right)$$
A) $19 x ^ { 9 }$
B) $13 x ^ { 10 } + 6 x ^ { 8 }$
C) $13 x ^ { 5 } + 6 x ^ { 4 }$
D) $19 x ^ { 18 }$

Question

Quizplus · Accepted Answer

When adding polynomials, you combine like terms. For the given expression, $8x^5 + 5x^5 = 13x^5$ and $9x^4 - 3x^4 = 6x^4$, resulting in $13x^5 + 6x^4$.

Perform the Indicated Operations and Simplify (8x5+9x4)+(5x5−3x4)\left( 8 x ^ { 5 } + 9 x ^ { 4 } \right) + \left( 5 x ^ { 5 } - 3 x ^ { 4 } \right)(8x5+9x4)+(5x5−3x4)

Perform the Indicated Operations and Simplify $\left( 8 x ^ { 5 } + 9 x ^ { 4 } \right) + \left( 5 x ^ { 5 } - 3 x ^ { 4 } \right)$