Question

If f(x)=2x^2+5√(x-2), complete the following statement: f(3) = _____

Answer 1

Given:
$f(x) = 2x^{2} +5 \sqrt{x-2}$

Asked:
f(3)

Solution:
Subtitute x with 3 in the function
$f(x) = 2x^{2} +5 \sqrt{x-2}$
$f(3) = 2(3)^{2} +5 \sqrt{3-2}$

Then simplify to find the value of f(3)
$f(x) = 2(9) +5 \sqrt{1}$
$f(x) = 18 +5$
$f(x) = 23$

The final answer is 23