If g(x) = x2 − 4, find g(5).

6
14
21
29

1 answer

To find \( g(5) \) for the function \( g(x) = x^2 - 4 \), we need to substitute \( x \) with 5 in the given function.

First substitute \( x \) with 5:
\[ g(5) = 5^2 - 4 \]

Next, calculate \( 5^2 \):
\[ 5^2 = 25 \]

Then, subtract 4 from 25:
\[ 25 - 4 = 21 \]

So,
\[ g(5) = 21 \]

The correct answer is:
21.