Please, answer the question 3

Test 3(20 points) Classes and Objects. Design a class named QuadraticEquation for a quadratic equation a x2+bx+c=0. The class contains: - (3 points)Private data fields a, b, and c that represent three coefficients. - (4 points)A constructor for the arguments for a,b, and c. - (3 points)Three getter methods for a,b, and c. - (4 points)A method named getDiscriminantO that returns the discriminant, which is b24ac. - (6 points)The method named getRoot10 and getRoot20 for returning two roots of the equation. These methods are useful only if the discriminant is nonnegative. Let this methods return 0 if the discriminant is negative. r1=2ab+b24acr2=2abb24ac