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

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

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

Answer :

To write the polynomial in descending order, we need to rearrange its terms so that the exponents of the variable [tex]\( x \)[/tex] are sorted from highest to lowest. Let's analyze the polynomial:

The given polynomial is:
[tex]\[ 2x^2 - 4x + x^6 + 8 + 3x^{10} \][/tex]

Now, let's identify the terms along with their exponents:

- [tex]\( 3x^{10} \)[/tex] has an exponent of 10.
- [tex]\( x^6 \)[/tex] has an exponent of 6.
- [tex]\( 2x^2 \)[/tex] has an exponent of 2.
- [tex]\( -4x \)[/tex] has an exponent of 1.
- [tex]\( 8 \)[/tex] is a constant term with an implicit exponent of 0.

To write the polynomial in descending order, we need to order the terms from the highest exponent to the lowest:

1. Start with the term [tex]\( 3x^{10} \)[/tex] (highest exponent 10)
2. Next, [tex]\( x^6 \)[/tex] (exponent 6)
3. Then, [tex]\( 2x^2 \)[/tex] (exponent 2)
4. Then, [tex]\( -4x \)[/tex] (exponent 1)
5. Finally, [tex]\( 8 \)[/tex] (constant term)

After arranging the terms, the polynomial in descending order is:
[tex]\[ 3x^{10} + x^6 + 2x^2 - 4x + 8 \][/tex]

This matches option A:
A. [tex]\( 3x^{10} + x^6 + 2x^2 - 4x + 8 \)[/tex]

Therefore, the correct answer is A.

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