SOLUTION: how did you transform each equation into a quadratic equation? what mathematical concept or principles did you apply?

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Question 1166968: how did you transform each equation into a quadratic equation? what mathematical concept or principles did you apply?
Answer by Edwin McCravy(20054) About Me  (Show Source):
You can put this solution on YOUR website!


EACH equation???  I don't see even ONE equation,  let alone "EACH"!!! l