kirsuna kirsuna

20-03-2015
Mathematics

contestada

what is the solution set for x in log4(x+5)+log4x=log4 14

Respuesta :

Panoyin Panoyin

20-03-2015

log4(x + 5) + 4x = log4
log4(x) + log4(5) + log4x = log4
log4x + log20 + log4x = log4
log4x + log4x + log20 = log4
log8x + log20 = log4
   -log20   -log20
0.903089987x = -0.6989700043
0.903089987    0.903089987
   x = -0.7739760316

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