Answer:
f(7) = 44
Explanation:
To evaluate the function f(x)=x^2-5 at x = 7, replace each instance of 'x' in this function by 7:
f(7) = 7^2 - 5 = 49 - 5 = 44
So: f(7) = 44
44
substitute the 7 into the equation for x
f(x) = - 5
f(7) = - 5
f(7) = 49 - 5
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