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#1
Feb 24 2015 06:59am
Question

derive quadratic formula by completing the square.
1st line : 0=ax^2+bx+c
last line: x+-b plus or minus square root of b^2-4ac / 2a (quad equation)

do not use numbers, only A,B,C letters.

due in 1 hour pls thanks
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#2
Feb 24 2015 10:18am
thanks for help but its too late ... this can now be closed.
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#3
Feb 24 2015 03:56pm
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