Solutions to the polynomial equation x^2 + b*x + c = 0.

This quiz illustrates the use of formula answers as elements of an ordered or unordered sequence, in particular the so-called discriminant and the two roots of a polynomial equation of second degree. The expressions for the roots include the square root function, which you should write as sqrt().
Enter in sequence the discriminant D, the smallest and the largest of the two roots for the polynomial equation x^2 + b*x + c = 0, thus altogether 3 expressions:
Enter the expression for the discriminant:
Enter the expression for the smallest root:
Enter the expression for the largest root:
The next questions illustrate other ways of presenting the same questions. First with fields in the question phrase for entering each expression:

Enter for the polynomial equation x^2 + b*x + c = 0

the discriminant D ,
the smallest root and
the largest root .
Enter the discriminant and the two roots to the polynomial equation x^2 + b*x + c = 0, thus 3 expressions written in any order:
Enter anyone of the roots:
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