Question

Match the following according to the polynomial $3x^5-7x^4+2x^3-6x+9$.

• A. 5
• B. 1
• C. 9

Answer 1

Here, given polynomial is
$3x^5-7x^4+2x^3-6x+9$.

i) A quantity representing the power to which a given number or expression is to be raised, is called an exponent.
So, exponent of $-6x$ is 1.

ii) The highest power of the variable that occurs in a polynomial is called the degree of the polynomial.
Thus, 5 is the degree of the given polynomial.

iii) Constant term is a term in a polynomial whose value cannot be changed. Thus, constant term in $3x^5-7x^4+2x^3-6x+9$ is 9.