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OpenStudy (anonymous):
anyone who solves this is a lifesaver: Solve equation, 21z^2+85z-26=0
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OpenStudy (anonymous):
use the quadratic formula to solve this look up the quadratic formula online and when you find it plug in a = 21, b = 85, and c = -26 and you get -4.3333. You better give me medal this time.
OpenStudy (anonymous):
lol i will thank you marvin
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