
Discriminant review (article) | Khan Academy
A positive discriminant indicates that the quadratic has two distinct real number solutions. A discriminant of zero indicates that the quadratic has a repeated real number solution. A …
Discriminant for types of solutions for a quadratic
You're always going to have one that's plus the square root of the discriminant, and one that's minus the square root of the discriminant. The exception is when the discriminant is zero, …
Using the quadratic formula: number of solutions - Khan Academy
Sal determines how many solutions the equation x²+14x+49=0 has by considering its quadratic formula, and more specifically, its discriminant. Created by Sal Khan and Monterey Institute for …
Solving quadratic equations | Lesson (article) | Khan Academy
The b 2 4 a c portion of the quadratic formula is called the discriminant. The value of b 2 4 a c tells us the number of unique real solutions the equation has:
Algebra 1 | Math | Khan Academy
The Algebra 1 course, often taught in the 9th grade, covers Linear equations, inequalities, functions, and graphs; Systems of equations and inequalities; Extension of the concept of a …
Khan Academy
Khan Academy ... Khan Academy
Second partial derivative test (video) | Khan Academy
How to determine if the critical point of a two-variable function is a local minimum, a local maximum, or a saddle point.
Le discriminant d'un trinôme du second degré (leçon) | Khan …
Si le discriminant est positif, l'équation a x 2 + b x + c = 0 a deux racines réelles distinctes. Si le discriminant est égal à 0 , l'équation a x 2 + b x + c = 0 a une racine réelle double. Si le …
The quadratic formula | Algebra (video) | Khan Academy
Remember when you first started learning fractions, you encountered some different rules for adding, like the common denominator thing, as well as some other differences than the whole …
Number of solutions to equations | Algebra (video) | Khan Academy
A linear equation could have exactly 1, 0, or infinite solutions. If we can solve the equation and get something like x=b where b is a specific number, then we have one solution. If we end up with …