Solve the inequality f(x)< or equal to 0, where f(x)=(x- 1)(x+4)^2 by using the graph

Solve the polynomial inequality and express the solution set in interval notation.

the circle graph is not a function.

step-by-step explanation:

the graph of the circle is not a function.

because for a graph to be a function, each value of x must give one value of y

in the circle, the values of x for -2< x< 2 each give 2 values of y.

hence this is not a function.

in simplified version   it would be x ≤-4

step-by-step explanation:

multiply each term in x ≤-4 by -1