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OpenStudy (anonymous):
4t^2-20t+21=0
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OpenStudy (bahrom7893):
D = b^2 - 4ac = 400 - 4*4*21
OpenStudy (bahrom7893):
no solutions in the real domain
OpenStudy (anonymous):
what about a fraction that you get when one does the perfect sqaure
OpenStudy (anonymous):
do the quadratic formula
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