Question

Which expressions are polynomials? x-1, 6+p, 8x-z^3, 5x^2-√x​

Answer 1

X-1 is the answer because I just did the quiz

Answer 2

Hello!

The answer is:

-
`x-1`

-
`6+p`

-
`8x-z^(3)`

Why?

A polynomial is a mathematical expression that contains constant values like numbers, and variables like "x, y, z or p", these constants and variables can indicate algebraic operations like addition, subtraction, division, and product. The variables can have exponent numbers that define the degree of a polynomial.

-
`x-1` it's a polynomial because it have a constant value (1) and a variable (x), it's a first degree polymonial.

-
`6+p` it's a polynomial because it have a constant value (6) and a variable (p), it's a first degree polynomial.

-
`8x-z^(3)` it's a polynomial since it have a combination of two variables (x and z), it's a third degree polynomial since the largest exponent is 3.

-
`5x^(2) -√(x)` is not a polynomial since it have a square root. Polynomials does not contains roots.

Have a nice day!