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

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 …

Simple quadratic equations like x^2=4 can be solved by taking the square root. This article reviews several examples and gives you a chance to practice on your own.

Learn how to solve quadratic equations like (x-1) (x+3)=0 and how to use factorization to solve other forms of equations.

What you will learn in this lesson So far you have solved linear equations, which include constant terms—plain numbers—and terms with the variable raised to the first power, x 1 = x . You will …

Solving a quadratic equation means finding the value (s) for the variable (s) that make the equation true. To do that, we need to first understand how to work with squares and square roots.

And you are able to pick that out just by looking at the quadratic in vertex form. Now let's get a few more examples under our belt so that we can really get good at picking out the vertex when a …

Based on the initial form of a quadratic equation, we can determine which solution methods are and aren't appropriate. Created by Sal Khan.

What you will learn in this lesson So far you have solved linear equations, which include constant terms—plain numbers—and terms with the variable raised to the first power, x 1 = x . You will …

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 …