12 f(x)=(2x+1)(x+1) find: a f(2) b f(-2) f(0)

To find the values of \( f(x) \) for the given function \( f(x) = (2x+1)(x+1) \), we need to substitute the given values of into the function and simplify.a) \( f(2) \):Substitute into the function: b) \( f(-2) \):Substitute into the function: c) \( f(0) \):Substitute into the function: Therefore, the answers are:a) \( f(2) = 15 \)b) \( f(-2) = 3 \)c) \( f(0) = 1 \)