SOLUTION: ¿Cuál seria el valor de la incógnita del logaritmo?? log4 X = -3

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Question 1165535: ¿Cuál seria el valor de la incógnita del logaritmo??
log4 X = -3
Found 2 solutions by MathLover1, MathTherapy:
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

log%284%2Cx%29+=+-3+......in base 10
log%28x%29%2F+log%284%29=+-3+
log%28x%29=+-3log%284%29+
log%28x%29=+log%284%5E-3%29+
log%28x%29=+log%281%2F4%5E3%29+
x=+1%2F4%5E3
x=+1%2F64

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

¿Cuál seria el valor de la incógnita del logaritmo??
log4 X = -3 
matrix%281%2C3%2C+log+%284%2C+%28X%29%29%2C+%22=%22%2C+-+3%29  

 ------- Converting to EXPONENTIAL form