Computer Science

Find the approximate root of the 𝒂𝒙𝟑 + 𝒃𝒙𝟐 + 𝒄𝒙 − 𝟑𝟎 = 𝟎 ,Where a is the third last digit , b the 2nd last and c the last digit of your registration number (arid) using any two approximate methods correct to 5 significant figures also find error for both methods discuss which method is best.