Home
Search
Create
Library
Topics
Student
Teacher
Admin
Map
Sign in for more features
YourStory
Home
Search
Create
Library
Topics
Student
Teacher
Sign in
Feedback
Contact Us!
Assessment
What is the quadratic formula used to solve for x in the equation ax² + bx + c = 0?
x = (-b ± √(b² - 4ac)) / (2a)
x = (b ± √(a² + 4ac)) / (2a)
x = (-a ± √(b² + 4ac)) / (2b)
x = (b ± √(a² - 4ac)) / (2c)
If you have the equation x² - 4x - 5 = 0, what are the values of x using the quadratic formula?
5 and -1
-5 and 1
4 and -1
5 and 1
What does the discriminant in the quadratic formula (b² - 4ac) tell us?
The number of real solutions to the equation.
The value of b in the equation.
The sum of the roots of the equation.
The product of the roots of the equation.
Submit