Question

find the value of f(3) and f(-2) for each of the equations below:
i)f(x)=(x square - 2)(x+4)
f(x)=(xt3)square over (4-x)

Answer 1

\((x^2-2)(x+4)\)?

Answer 2

just put a 3 where you see an x
\(((3)^2-2)((3)+4)\)=?
the parenthesis around the 3 may seem redundant but they will help you on the next one
put a-2 where you see an x
\(((-2)^2-2)((-2)+4)\)=?

Answer 3

\[i)f(x)=(x^{2}-2)(x+4)\]

Answer 4

\[f(x)=\frac{ (x+3)^{2} }{(4-x) }\]

Answer 5

answers please.