Question

What is the value of the polynomial
$x^2-3x+5$ at $x=3?$

• A. 23
• B. 5
• C. -5
• D. 13

Answer 1

Answer: (B)

5

When $x=3$,
$x^2-3x+5$
$={\left(3\right)}^2-3\times 3+5$
$=9-9+5=5$

$\therefore$The value of the polynomial
$x^2-3x+5$ at $x=3$ is 5.