More Lessons for Grade 9 Math
Videos, worksheets, examples, solutions, and activities to help Algebra students learn about solving quadratic equations by factoring with and without trial and error.
How to Use UnFOIL to Factor Quadratic Equations?
Using the unFOIL method to factor quadratic equations into two binomials requires many steps.
- 5x - 12
Factoring quadratics without trial and error
This video shows a quick method for factoring quadratic expressions where the coefficient of the x squared term is not 1. This is a quick method that allows the correct answer to be achieved without trial and error and guess work.
+ 9x + 4
- x - 2
- 11x + 2
Solving Quadratic Equations by Factoring
Solve the following quadratic equations by factoring
- 4x = 12
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