Question

Which of the following is NOT a quadratic polynomial?

• A. $p\left(x\right)=16-4x$
• B. $p\left(x\right)=13-x$
• C. $p\left(x\right)=12x^3-x$
• D. All of the above

Answer 1

The correct option is D All of the above

The general form of quadratic polynomial is $p\left(x\right)=a{x}^2+bx+c$ where $x$ is a variable and $a,b,c$ are constants. The first term of this polynomial has power $2$ and the second term of this polynomial has power $1$ and therefore, the degree of the polynomial is the largest exponent that is $2$.

Therefore, a polynomial of degree two is called a quadratic polynomial.

Hence, none of the options is a quadratic polynomial.