Question

If g(x)=x^2-4 find g(5)

Answer 1

Put 5 instead of x
g(5)=5^2-4=21

Answer 2

Answer:

21

Step-by-step explanation:

$g(x)=x^2-4\\\\g(5)-\text{put}\ x=5\ \text{to the equation of the function}\ g(x):\\\\g(5)=5^2-4=25-4=21$