Question

2^2 + 2x + x find f (x) for f(-3)

Answer 1

Given:

`f(x)=x^2+2x+x`

Simplifying it,

`f(x)=x^2+3x`

Finding value of f(-3):

`\begin{gathered} f(-3)=(-3)^2+3(-3) \\ =9-9 \\ =0 \end{gathered}`

Therefore, f(-3) = 0