Valerie Nam's answer to Chowder's Secondary 3 A Maths question.
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The equation is only valid if b in the equation can be squarerooted, because after taking out the common x in the equation, you will have to do complete the square in order to simplify the (X^2-b) portion and to be able to do that b must be squarerooted.
Date Posted:
7 years ago
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