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The Quadratic Formula  Problem 10
Brian McCall
Brian McCall
Univ. of Wisconsin
J.D. Univ. of Wisconsin Law school
Brian was a geometry teacher through the Teach for America program and started the geometry program at his school
There are multiple methods for solving quadratic equations, and here we practice identifying which method might be best to use in different cases. Of course, as you practice, you'll develop a preference for one method over another, and while you often have a choice, there are some problems that can only be solved using certain methods. The quadratic formula is a lot of work, but can be applied to any problem. Factoring is often the fastest, but can't always be used. If the "b" term is zero, consider isolating the x^2 term and then taking square roots of both sides (but remember to use both the +,  square roots!)
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Brian McCall
B.S. in Chemical Engineering, University of Wisconsin
J.D. University of Wisconsin Law School (magna cum laude)
He doesn't beat around the bush. His straightforward teaching style is effective and his subtle midwestern accent is engaging. There's never a dull moment with him.
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Sample Problems (13)
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