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OpenStudy (anonymous):
i mean 4x^2+4x+1=0
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OpenStudy (mimi_x3):
(2x+1)(2x+1) = 0
OpenStudy (alfie):
use the quadratic formula and you have: Delta = 16-16 = 0 So you have two identical solutions which are... x12 = -4/8 = -1/2
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