Verify that the numbers given alongside of the cubic polynomials below are their zeroes. Also verify the relationship between the zeroes and the coefficients in each case: 2x³ + x² – 5x + 2; ½,1, -2

To verify that a given number is a zero(root) of a cubic polynomial, we can substitute the number into the polynomial and see if the result is zero. However, also the number is a zero of the polynomial, If the result is zero.

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