Question

(Please help i only have 20 min left, Thank you!!)

Write this polynomial in descending order: –4x5 + 4x3 + x7 – 10 + 2x4.

Answer 1

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

Explanation:

To write a polynomial in descending order means writing the polynomial in decreasing powers of x.

The given polynomial expresion is

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

We start from the term with the highest degree and end with term with the least degree.

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

Therefore the given polynomial written in descending order is

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