The discriminant is the part of the quadratic formula underneath the square root symbol: b²-4ac. The discriminant tells us whether there are two solutions, one solution, or no solutions.

Use the discriminant to state the number and type of solutions for the equation negative 3x squared plus 5x minus 4 is equal to 0. And so just as a reminder, you're probably wondering what is the discriminant.

The discriminant is part of the quadratic formula, and because the discriminant is inside a square root sign it cannot be negative, and from the sign of the discriminant we can determine how many roots a …

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 function; Exponential …

Quadratic approximations of multivariable functions, which is a bit like a second order Taylor expansion, but for multivariable functions. The second partial derivative test, which helps you find the …

It's demonstrated in the previous video that you get them in second degree polynomials by solving quadratic equations with negative discriminant (the part under the square root in the quadratic …

Then the formula will help you find the roots of a quadratic equation, i.e. the values of x where this equation is solved.

It's interesting that we can use discriminant to determine the solution of x in quadratic formula. But when if there is no solution, can we argue that the formula is no meaning in some degree.

Frankly speaking, this formula is not worse to be remebered. It's not hard to sample the equation and find out the solution.

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: