Quadratic Equations (4 of : Deriving the quadratic formula)

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Mr. Woo, You are the type of teacher, every student deserves.

devvaannsh
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Superb derivation and explanation! I watched you for all my HSC maths tutorials last year, thanks for all your help :)

ConTejasMusic
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i dont really get why we dont need +-(2a) in this derivation :/

ThaWaffle