Answer:
Since f(-5) is not equal to 0, we can conclude that (x + 5) is not a factor of f(x) = f(x) = x³ - 4x² + 3x + 7
Explanation:
Step 1: solve the equation by equaling it by 0
x+5 =0 then x=-5
Step 2: plug in (-5) into the equation
f(-5) = (-5)³ - 4(-5)² + 3(-5) + 7
= - 233
since we got -233 and not 0
Therefore, x+5 is not a factor of the function of f(x)