First of all, I would like to thank each and everyone of you who is viewing this post. I know that you personally have helped many students with their questions and I know that by posting here, Im sure to get the right response !
Heres the Question :
3) Suppose we begin with the quadratic equation
We know the roots of the equation are given by the quadratic formula,
Now let a, b, and c be all positive single digit integers (that is, from 1 to 9). For example, one such quadratic equation can be (a=3, b=4, c=1)
Of all the possible quadratic equations of this type, if one equation is randomly picked, what is the probability that the roots of the equation will be rational?
Thank you in advance for all your help!
hopefully someone can help me with this question !