Question

Write 10x7 – 9x2 + 15x3 + 9 in standard form. Question 5 options:

A.10x7 – 9x2 + 15x3 + 9

B.10x7 + 15x3 – 9x2 + 9

C.9 + 15x3 – 9x2 + 10x7

D.9 – 9x2 + 15x3 + 10x7

Answer 1

I think the answer is B

Answer 2

Option B.

Explanation:

The given polynomial is

`10x^7-9x^2+15x^3+9`

In standard form of a polynomial, the terms are arranged according to its degree from left to right. It means term with highest degree should be on the left side.

Degree of
`10x^7,-9x^2,15x^3\text{ and }9` are 7, 2, 3 and 0.

Arrange the terms according to its degree.

`10x^7+15x^3-9x^2+9`

Hence, the correct option is B.