In matlab code please

Write a program in a MATLAB script file that determines the real roots of a quadratic equation ax + bx +c 0. Name the file quadroots. When the file runs, it asks the user to enter the values of the constants a, b &c. To calculate the roots of the equation, the program calculates the discriminant D, given by: 7. D=b2-4ac If D > 0, then the program displays the message "The equation has two roots," and the roots are displayed on the next line If D -0, then the program displays the message "The equation has one root," and the root is displayed on the next line. If D 0, then the program displays the message "The equation has no real roots." Run the script file (three times) to obtain solutions to the following: a. 3x2 6x +3 b. 3x2 +4x- 6 c. -3x2 +7x+5-0