# Function Example 4 and 5

Example 5

If $f\left(x\right)={x}^{2}+3x+2$  , express each of the following in terms of x:
(a) $f\left(2x\right)$
(b) $f\left(3x+1\right)$
(c) $f\left({x}^{2}\right)$