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Mathematics
OpenStudy (anonymous):

solve w^2+90w−2000, using the quadratic formula

OpenStudy (anonymous):

\[w=(-90\pm \sqrt{8100 +8000})/2\]

OpenStudy (anonymous):

so w=-106.4429, or +16.4429

OpenStudy (anonymous):

No, that's wrong. Please ignore. Correct answer is x = -108.4429, or +18.4429

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