Question

find f(a+4) when f(x)=x^2-5

Answer 1

[AI-generated answer — Bot GPT 3.5]

To find f(a+4), we substitute a+4 for x in the function f(x) = x^2 - 5.

f(a+4) = (a+4)^2 - 5

Expanding the square gives us:

f(a+4) = (a^2 + 8a + 16) - 5

Simplifying further:

f(a+4) = a^2 + 8a + 16 - 5

f(a+4) = a^2 + 8a + 11

Therefore, f(a+4) = a^2 + 8a + 11.