What polynomial has roots of - 6, - 4, and 1?

x3 - 9x2 - 22x + 24

x3 - x2 - 26x - 24

x3 + x2 - 26x + 24

x3 + 9x2 + 14x - 24

If the solution is not required for this question, then we can substitute directly the 3 values of x to the given equations. The correct equation will be the one in which for all values x, the equation is equal to zero.

the equation which give a zero value for all values of x is the fourth equation

x3 + 9x2 + 14x - 24