anonymous
  • anonymous
Compute the value of the discriminant and give the number of real solutions of the quadratic equation -7x^2-8x-3=0
Algebra
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
katieb
  • katieb
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
mathstudent55
  • mathstudent55
\(ax^2 + bx + c = 0\) \(x = \dfrac{-b \pm \sqrt{b^2 - 4ac}}{2a}\) \(b^2 - 4ac\) is the discriminant. If the discriminant is positive, there are 2 different real roots. If the discriminant equals zero, the is one real root with multiplicity 2. If the discriminant is negative, there are two complex roots.
crabbyoldgamer
  • crabbyoldgamer
mathstudent55 has it right. There's a little more to the discriminant, however. If the discriminant is positive, there are two real roots: that are rational numbers if the discriminant is a perfect square; that are irrational numbers if the discriminant isn't a perfect square. I created a video that explains the quadratic formula and the discriminant. It may provide additional assistance to you: https://www.youtube.com/watch?v=W0zIsspXh4g

Looking for something else?

Not the answer you are looking for? Search for more explanations.