The number and kind of roots of the equation f(x) = x⁴ − 2x³ − 11x² + 12x + 36 is
4 real roots
What is root of a polynomial equation
The roots of a polynomial equation are the values of the variable that make the polynomial equal to zero.
In a graph, the root is the point where the graph intersects the x-axis..
Solving the equation graphically shows that the roots has multiplicity at
(-2, 0) and (3, 0)
The roots are
x = -2, -2, 3, 3
These are four real roots