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A quadratic equation is a polynomial equation to the second degree. The general form is ax^2 + bx + c = 0. Quadratic equations can be solved by factoring, graphing, completing the square or using the quadratic formula.

Sal solves the equation s^2-2s-35=0 by factoring the expression on the left as (s+ 5)(s-7) and finding the s-values that make each factor equal to zero.

## Solving Quadratic Equations: Solving by Factoring - Purplemath

This lesson covers many ways to solve quadratics, such as taking square roots, completing the square, and using the Quadratic Formula. But we'll start with ...

## The Quadratic Formula Explained | Purplemath

Demonstrates the use of the Quadratic Formula and compares the ... they are the "numerical coefficients" of the quadratic equation they've given you to solve.

## 3 Ways to Solve Quadratic Equations - wikiHow

How to Solve Quadratic Equations. A quadratic equation is an equation where the highest exponent of a variable is 2. There are three main ways to solve ...

## SOLVING QUADRATIC EQUATIONS - SOS Math

www.sosmath.com/algebra/solve/solve4/s43/s43.html

The ''U'' shaped graph of a quadratic is called a parabola. A quadratic equation has two ... There are several methods you can use to solve a quadratic equation:.

How to solve quadratic equations. We do not have to graph our quadratic equations in order to solve them, instead we could use factoring and then apply the ...