Add.
-$9 x^{5}+5 x^{4}+6 x^{3}+2$
$\underline{9 x^{5}+6 x^{4}+9x^{3}+6}$
A) $8 x^{5}+8 x^{4}+15 x^{3}+14$
B) $18 x^{10}+11 x^{8}+15 x^{6}+8$
C) $44 x^{24}+8$
D) $18 x^{5}+11 x^{4}+15 x^{3}+8$

Question

Quizplus · Accepted Answer

When adding polynomials, you add the coefficients of the terms with the same exponent. For this problem: $9x^5 + 9x^5 = 18x^5$, $5x^4 + 6x^4 = 11x^4$, $6x^3 + 9x^3 = 15x^3$, and $2 + 6 = 8$.

Add - 9x5+5x4+6x3+29 x^{5}+5 x^{4}+6 x^{3}+29x5+5x4+6x3+2 9x5+6x4+9x3+6‾\underline{9 x^{5}+6 x^{4}+9x^{3}+6}9x5+6x4+9x3+6​ A) 8x5+8x4+15x3+148 x^{5}+8 x^{4}+15 x^{3}+148x5+8x4+15x3+14

Add
- $9 x^{5}+5 x^{4}+6 x^{3}+2$ $\underline{9 x^{5}+6 x^{4}+9x^{3}+6}$ A) $8 x^{5}+8 x^{4}+15 x^{3}+14$