Question

Which of the following is a polynomial?

Answer 1

Answer: Option A and Option C

Explanation:

Polynomials always have the following form:

`ax ^ n + bx ^(n-1) + cx^(n-2) +...+ d`

Where a, b, c, and d are constant and are real numbers

The exponents of the variable x are always greater than or equal to zero.

Then identify among the options the expressions that have these characteristics

The answer are:

Option A.

`4x^2 +9x+12`

Option C.

`15x^4`

Answer 2

Option A and C are correct

Explanation:

A polynomial is defined as an algebraic expression that consists of variables and constants involving operations of addition, subtraction, multiplication and non-negative exponents.

A. 4x^2+9x+12 is a polynomial

B. 3-√2x is not a polynomial

C. 15x^4 is a polynomial

D. 6x^2+2/x is not a polynomial

So, Option A and C are correct.