Answer:
C. 21
Step-by-step explanation:
g(x) = x² - 4
Give: x = 5
Plug in 5 for x in the equation:
g(5) = 5² - 4
Simplify. Remember to follow PEMDAS. First, solve the exponent, then subtract:
g(5) = (5 * 5) - 4
g(5) = 25 - 4
g(5) = 21
C. 21 is your answer.
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