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Factoring Trinomials, a = 1  Problem 5
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
You can think of factoring in terms of using the area of a rectangle to find the side lengths. If the area is a trinomial, start with a 2 x 2 box, and we know the first term must go in the upper left, and the third term must go in the bottom right. From there, you'll need to guess and check the outside values that would let your remaining diagonal boxes sum to the "b" term. The length and width that you discover represent the factors of the trinomial. This requires a lot of persistence and you'll get better with practice don't quit!
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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.
so my teacher can't explain this in 5 weeks but I learn this in less than 3 minutes”
its hard to focus when the teacher is really really really goodlooking”
i like how it took you 3 minutes and 8 seconds to accomplish what my teacher couldn't in 3 days”
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Factoring Trinomials, a = 1
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