Kevinmeikle2 Kevinmeikle2
  • 05-04-2018
  • Mathematics
contestada

log2(x+2)-log2(x-5)=3

Respuesta :

seanlovesgod2001
seanlovesgod2001 seanlovesgod2001
  • 05-04-2018
Answer:

x=3

Explanation:

log2(x+5)−log2(x−2)=3

combine the log terms as follows

log2(x+5x−2)=3

then by definition

(x+5x−2)=23=8

then some algebra

x+5=8x−16

7x=21,x=3


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