Question 7209: use the discriminant to determine how many real number solutions the quadratic equation -4j2 + 3j - 28 = 0 has. please and thank you!!!
Answer by prince_abubu(198)   (Show Source):
You can put this solution on YOUR website! The discriminant is the formula  . So, where do the a,b, and c come from? It comes from quadratic equation once it's already in the form  .
Your equation  is already in the correct form, so you can readily pull out the a, b, and c. For this one, the a = -4, b = 3, and c = -28. We'll plug those into the discriminant formula and see what kind of value we'll get:
The discriminant turned out to be a negative number. This means that your quadratic equation has no real number solutions.
IF  , quadratic equation has NO SOLUTION.
IF  , quadratic equation has EXACTLY 1 SOLUTION.
IF  , quadratic equation has EXACTLY 2 SOLUTIONS.
|
|
|
