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secondary 3 | A Maths
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Chowder
Chowder

secondary 3 chevron_right A Maths

Can someone explain to me this part

Date Posted: 7 years ago
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Valerie Nam
Valerie Nam's answer
13 answers (Tutor Details)
1st
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.