Problem (5): The roots of a cubic equation MAT LAB

Problem (5): The roots of a cubic equation ar +ax* +a.x+a, -0can be calculated using the following procedure: Set. A=a/a,, B#Ala, and C-ao / a 3. Calculate: D-+R2 where Q=(33-A*)/9 and R=(9.4B-27C-2A*)/541 If D> 0 the equation has complex roots. If D 0 all roots are real and at least two are equal. The roots are given by If D