## Quadratic expression factoring

Sal solves the equation s^s=0 by factoring the expression on the left as (s+ 5)(s-7) and finding the s. Teaches how to factor simple quadratics -- those with a leading coefficient of '1' -- quickly and easily. This page will try to solve a quadratic equation by factoring it first. How does this work? Well, suppose you have a quadratic equation that can be factored, like.
It is like trying to find out what ingredients went into a cake to make it so delicious. We're asked to factor 4y squared plus 4y, minus Find the solutions of the equation. Test prep SAT MCAT GMAT IIT JEE NCLEX-RN CAHSEE. So let's factor out a 2y minus 3, so this is equal to 2y minus 3, times 2y, times that 2y, plus that 5. Let's think about the factors of Let me do it in a different color. Computing Computer programming Computer science Hour of Code Computer animation. For instance, in the above problem, in addition to finding the factors of 6 that add to belgien spieleryou would have had to do these additional steps: So one will be positive, one will be darmstadt kasinostr. If I just have x plus a times x plus b, what is that equal to? And we need numbers that are very close to each. And then this term, the constant term right here, should be the product of two numbers. How do we find 6 and 1? I think that's all of. Since I'm adding to a negative —5then both factors must be negative. We're asked to factor 4y squared plus 4y, minus And they both can't be positive, because when you add them it would get you a positive number. Negative 1 times x minus 3, times x plus 8. Factoring simple quadratics review. To log in and use all the features of Khan Academy, please enable JavaScript in your browser. And the sum of those two numbers, a plus b, needs to be equal to this 4 right there. Therefore, we know that our solutions are the only ones possible. And when you have something like this, where you have 1 as the leading coefficient, you don't have to do this two-step factoring. Actually, let's mix it up a little bit. And I want to factor it into the product of two binomials. Discovery Educator Network DEN for Teachers DEN for Administrators Meet the Team Become a DEN Educator Explore K-5 Explore Explore Puzzlemaker Explore Puzzlemaker Word Cross Criss-Cross Double Puzzles Fallen Phrases Mazes Cryptograms Featured Programs Operation Prevention Explore Featured Programs Young Scientist Challenge Together Counts Toyota TeenDrive Click here for K lesson plans, family activities, virtual labs and more!