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.

Sal determines how many solutions the equation x²+14x+49=0 has by considering its quadratic formula, and more specifically, its discriminant.

If the discriminant is 0 you have one solution, but it's real. If the discriminant is less than 0 you have two complex solutions. Because the quadratic formula has a +/- in front of the radical, …

The quadratic formula allows us to solve any quadratic equation that's in the form ax^2 + bx + c = 0. This article reviews how to apply the formula.

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.

Quadratic Expressions, Equations in one Variable (Part 2) Learn Discriminant for types of solutions for a quadratic Equations with rational expressions

The equation x 2 + 3 x 4 = 0 looks like: where the solutions to the quadratic formula, and the intercepts are x = 4 and x = 1 . Now you can also solve a quadratic equation through factoring, …

The quadratic formula helps us solve any quadratic equation. First, we bring the equation to the form ax²+bx+c=0, where a, b, and c are coefficients. Then, we plug these coefficients in the …

Solve quadratic equations using the quadratic formula. For example, solve -9x+10x²+8=14.

We've seen linear and exponential functions, and now we're ready for quadratic functions. We'll explore how these functions and the parabolas they produce can be used to solve real-world …