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OpenStudy (cookiemonster2412):
Solve: 8n^2-4n=18
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OpenStudy (cookiemonster2412):
@TheSmartOne
OpenStudy (anonymous):
8n^2 - 4n = 18 8n^2 - 4n - 18 = 18 - 18 8n^2 - 4n - 18 = 0 n = -b + sqrt(b^2 - 4ac)/2a n = -(-4) + sqrt ((-4)^2 - 4 (8)(-18))/2(8) n = 4 + sqrt(592)/16 n = 1.7
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