Question

find a cubic polynomial whose zeroes are 2,-3,find a cubic polynomial whose zeroesare half 1 and -3

Answer 1

The degree of a cubic polynomial is 3.It has 3 roots.

If one of the zeroes of cubic polynomial of x³+ax²+bx+c is -1, then product of other two zeroes is: * b-a-1, b-a+1, a-b+1, a-b-1.

If zeros are given, • First, you should find the sum of zeros and products of zeros. • Second, you should substitute them in the formula given below:‑ K{x^2‑(sum of zeros)X+(product of zeros)} • Now, you can form a polynomial.

You can refer your textbook for more information.

Hope this helps you

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