The zero of the polynomial are
-2.13, -0.49, 1.29
What are roots of a polynomial in a graph?
The roots of a polynomial, also known as the zeros or solutions, are the values of the variable for which the polynomial evaluates to zero.
On a graph, the roots of a polynomial correspond to the x-values where the graph intersects the x-axis.
Investigating the graph, we can see that the roots of the equation are:
-2.13, -0.49, 1.29