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In this video I will show factoring in the form of ax^2+bx+c: 21x^2-29x-10 using the Foil Method. Ex. 2

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The reason he's laughing is (I/off-camera crew) spent years trying to convince him to do videos on factoring using the foil method. He hated the foil method and refused to do it. Finally he gave in and actually like it now! Sheeeeze!!!
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Next video in this series can be seen at:
https://youtu.be/mjRYMRhazxA