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OpenStudy (anonymous):
Find all the real-number roots of the equation. Give an exact expression for the root and also a calculator approximation rounded to three decimal places. (Enter your answers as comma-separated lists.) log9(x^2 + x) = 0.5
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OpenStudy (anonymous):
log9(x^2 + x) = 0.5 x^2 +x = 9^(1/2) = 3 x^2 +x - 3 = 0 Delta = 1 + 12 = 13 x = -1 +/- sqrt (13)/ 2
OpenStudy (anonymous):
You can plug the numbers into your calculator now!
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