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OpenStudy (anonymous):
For what values of p is 4x^2+px+49=0 a perfect square? b^2-4ac=0 p^2-4(4)(49)=0 p^2-784=0 p^2=784 p=+-28???
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OpenStudy (anonymous):
completely right
OpenStudy (anonymous):
I thought so too, but by text give the answer +-14
OpenStudy (anonymous):
i can assure u +-28 is your answer
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