Quadratic Equation Part 2

Most problems can be solved using more than one method. A worksheet includes just nine questions but many more ways to solve each. Scholars must graph, solve, and justify quadratic problems.

In need of a practice worksheet solving quadratic equations using the formula? Have no fear, we have one for you! This worksheet provides the formula at the top with 14 questions following using a variety of leading coefficients. 

Sal first solves a couple of equations using the factoring method he has already taught. Next, he introduces the quadratic formula and demonstrates how to plug the numbers from the quadratic equation into the quadratic formula....

Solving quadratics by factoring is the main concept in this video. Several examples are shown with positive numbers and with negative numbers. The instructor demonstrates how to set the factored equation to zero to solve the quadratic....

It's the video your algebra class has been waiting for - Sal explains the quadratic formula! He describes it as "one of at least the top five most useful formulas In mathematics" and recommends that it be memorized, as long as one also...

Armed with their newfound (or refreshed) knowledge of the quadratic formula, viewers can now work with Sal to prove the formula - an important skill that is often ignored in algebra. Once they learn how to both use and prove the...

Explaining the distance formula as "an application of the Pythagorean Theorem" might relieve some of your young mathematicians who are scratching their head at all the new concepts. Sal demonstrates how to take the distance between any...

This worksheet is part of the TI-Nspire lesson on the quadratic formula. Pupils determine the solutions of a quadratic function by looking at a graph and the discriminant. They use the quadratic formula to solve quadratic functions on...

What do you do when you are trying to solve a quadratic equation and factoring and graphing aren't working out for you? Use the quadratic formula! Watch this video to find out exactly how to find your solutions with the quadratic...

What does a square have to do with a quadratic function? Young scholars learn that completing an algebraic square is helpful when graphing the quadratic functions. The video instructor demonstrates rewriting quadratic functions in vertex...