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OpenStudy (pottersheep):
Find solutions of 4x^2 - 9
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OpenStudy (pottersheep):
I get +- 3/2 but the answer says 3 or 2...
OpenStudy (saifoo.khan):
(2x-3)(2x+3) = 0
OpenStudy (pottersheep):
So I was right?
OpenStudy (saifoo.khan):
Yes you are,
OpenStudy (pottersheep):
=D
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OpenStudy (anonymous):
(2x-3)(2x+3)
OpenStudy (anonymous):
perfect square
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