Question

Which polynomial lists the powers in descending order?

A. 4x3 – 4x5 + 2x4 + x7 – 10
B. x7 – 4x5 + 2x4 + 4x3 – 10
C. –10 + 4x3 – 4x5 + 2x4 + x7
D. x7 + 4x3 + 2x4 – 4x5 – 10

Answer 1

Option B is correct
`x^(7)-4x^(5)+2x^(4)+4x^(3)-10`

Explanation:

Arranging a given polynomial or polynomial equation in descending order means to arrange the powers of variables in each term in descending order. Descending order means arranging from greatest to lowest, like 10,9,5,2 etc

So, as per the definition, we can see that option b is the one with descending order.

`x^(7)-4x^(5)+2x^(4)+4x^(3)-10`

The powers 7,5,4,3 are in descending order.