High School

Which of the following shows the polynomial below written in descending order?

[tex]4x^2 - x + 8x^6 + 3 + 2x^{10}[/tex]

A. [tex]3 + 2x^{10} + 8x^6 + 4x^2 - x[/tex]

B. [tex]8x^6 + 4x^2 + 3 + 2x^{10} - x[/tex]

C. [tex]2x^{10} + 8x^6 + 4x^2 - x + 3[/tex]

D. [tex]2x^{10} + 4x^2 - x + 3 + 8x^6[/tex]

Answer :

To write the given polynomial in descending order, we need to arrange the terms starting with the highest power of [tex]\( x \)[/tex] and move to the lowest power. The given polynomial is:

[tex]\[ 4x^2 - x + 8x^6 + 3 + 2x^{10} \][/tex]

Let's organize the terms step by step:

1. Identify the powers of [tex]\( x \)[/tex] in each term:
- [tex]\( 2x^{10} \)[/tex] has the highest power, which is 10.
- [tex]\( 8x^6 \)[/tex] has the next highest power of 6.
- [tex]\( 4x^2 \)[/tex] is next with a power of 2.
- [tex]\( -x \)[/tex] has a power of 1.
- [tex]\( 3 \)[/tex] is a constant term with a power of 0 (technically, it's like [tex]\( 3x^0 \)[/tex]).

2. Arrange the terms in descending order based on the powers of [tex]\( x \)[/tex]:
- Start with the highest power: [tex]\( 2x^{10} \)[/tex]
- Then, [tex]\( 8x^6 \)[/tex]
- Followed by, [tex]\( 4x^2 \)[/tex]
- Next, [tex]\( -x \)[/tex]
- Finally, the constant term: [tex]\( 3 \)[/tex]

Combining these terms, the polynomial in descending order is:

[tex]\[ 2x^{10} + 8x^6 + 4x^2 - x + 3 \][/tex]

This matches option C. Therefore, the correct answer is:

C. [tex]\( 2x^{10} + 8x^6 + 4x^2 - x + 3 \)[/tex]