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Mathsonfire
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The zeroes of a cubic polynomial are the values of the variable that make the polynomial equal to zero.
A cubic polynomial can have a maximum of three zeroes.
One method is by using the Rational Zero Theorem, which involves finding the possible rational roots of the polynomial and then using synthetic division to check for actual zeroes. Another method is by graphing the polynomial and finding the x-intercepts.
Yes, a cubic polynomial can have imaginary zeroes, which occur in conjugate pairs if the polynomial has real coefficients.
The zeroes of a cubic polynomial represent the x-intercepts of its graph. This means that the graph will intersect the x-axis at these points, and the y-value of the graph at these points will be equal to zero.