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13-12-2021
Mathematics

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solve the log equation

solve the log equation class=

Respuesta :

ajaynvsa1 ajaynvsa1

13-12-2021

Answer:

x = -5

Step-by-step explanation:

log5((5-3x)/((7+x)^2))=1

(5-3x)/(7+x)^2 = 5

5-3x = 5x^2+70x+245

5x^2+73x+240=0

x= -5, x= -48/5

-48/5 is extraneous

x = -5

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