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Algebra-Reiny please explain this

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Hi Reiny, I posted this problem earlier and you responded but I don't get the reasoning-
The problem was -2log8(x+1) = -8
you said multiply by -2
and then you put log8(x+1)=4(wasn't that dividing by -2)
log8(x+1)^2 = 8 (how did you get to the power of 2 and =4 became =8
x+1 = 8^4
x= 4095

Thank you

  • Algebra-Reiny please explain this -

    Of course I should have said divide by -2

    I started by putting the 2 as an exponent, but then changed my mind.
    I forgot to delete the line log8(x+1)^2 = 8 from that approach

    here is the simple solution

    -2log8(x+1) = -8
    first of all, divide be -2
    log8(x+1) = 4
    (x+1) = 8^4 , by definition of logs
    x+1 = 4096
    x = 4095

  • Algebra-Reiny please explain this -

    Reiny, thank you-I get it now
    thanks again

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