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Mathematics 11 Online
OpenStudy (anonymous):

.

OpenStudy (callisto):

This time, use log directly 3^(2x + 1) = 70 (2x+1)log3 = log 70 2x+1 = (log70)/(log3) 2x = [(log70)/(log3)] -1 2x = 2.867147 x = 1.43, cor to 3 s.f.

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