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 Find Find roots 7x^3-28x^2+28x-56Solution:Your problem -> Find roots 7x^3-28x^2+28x-567x^3-28x^2+28x-56If a polynomial has integer coefficients, then every rational zero will have the form p/q, where p is a factor of the constant and q is a factor of the leading coefficient.p = factor of 56:. p = +-1,+-2,+-4,+-7,+-8,+-14,+-28,+-56q = factor of 7:. q = +-1,+-7Find +-p/q, these are the possible roots+-1,+-1/7,+-2,+-2/7,+-4,+-4/7,+-7,+-8,+-8/7,+-14,+-28,+-56

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