To find the roots of the polynomial function \( f(x) = (x+3)(x-1)^2(x-4) \), we need to set the function equal to zero and solve for \( x \). The roots are the values of \( x \) that make the function equal to zero. In this case, the roots can be found by setting each factor of the polynomial to zero.
Step 1: Identify the Function
We are given the polynomial function
\[
f(x) = (x + 3)(x - 1)^2(x - 4)
\]
Step 2: Set the Function to Zero
To find the roots, we set the function equal to zero:
\[
f(x) = 0
\]
Step 3: Solve for Roots
The roots can be found by solving each factor of the polynomial: