idk122113 idk122113

24-10-2017
Mathematics

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-2log5 7x=2

the 5 is small please help me

Respuesta :

harpazo harpazo

24-10-2017

-2log_5 7x = log_5 2

log_5[1/(7x)^2] = log_5 2

log_5(1/49x^2) = log_5 2

log_5(1 - 49x^2) = log_5 2

1 - 49x^2 = 2

You finish.

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