Question

A student claims that 1,2,3 and 4 are the zeros of a cubic polynomial function. Explain why the student is mistaken. Give an example to support your answer.

Answer 1

A cubic function only has 3 solutions at which x = 0, never 4. For example the function y =
`y = x^(3) + 3x^(2) + 2x` gives the solutions:
x = 0, x = -1 and x = -2