Question

Which of the following is a zero of the
$\text{polynomial}{x}^2-4?$

• A. 0.0
• B. 1
• C. 2
• D. 4

Answer 1

The correct option is C 2

The zero of a polynomial is the value at which the vaue of the polynomial turns out to be zero.

$\text{At}x=0,x^2-4=0^2-4=-4$
$\text{At}x=1,x^2-4=1^2-4=-3$
$\text{At}x=2,x^2-4=2^2-4=0$
$\text{At}x=4,x^2-4=4^2-4=12$

Hence,
$x=2\text{is a zero of the given polynomial.}$