Question

Which of the following is not a polynomial?

A. 5 - x^2 + 7x^0
B. x^8 + 2x^3 + 7
C. 3x^4
D. 5x^10 - 4x^-8 + 2

Answer 1

c.?

Answer 2

Recall the definition of a polynomial. A n-order polynomial takes on the form of: \[y = ax^n + bx^{n-1} + ..+ px+ q\]

Answer 3

Any of the coefficients of the terms can be 0.

Answer 4

So \[3x^4\] is a polynomial too. It just means that the coefficient of all other terms is 0.

Answer 5

Notice however, that all terms of polynomials have positive exponents.

Answer 6

so its D.?

Answer 7

Correct.

Answer 8

What is the degree of 7x^6 - 6x^5 + 2x^3 + x - 8?

Answer 9

The degree of a polynomial would be the highest power. In this case, it is 6.

Answer 10

Which of the following shows the polynomial below written in descending order?

4x^2 - x + 8x^6 + 3 + 2x^10

A. 2x^10 + 8x^6 + 4x^2 - x + 3
B. 3 + 2x^10 + 8x^6 + 4x^2 - x
C. 8x^6 + 4x^2 + 3 + 2x^10 - x
D. 3 - x + 2x^10 + 8x^6 + 4x^2