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pre-calculus

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solve the following logarithmic equation. Be sure to reject any value of x that is not in thedomain of the orginal logarithmic expression. Give the exact answer.

log3(x+8)=4
The three actually drops down a little below the g. Can someone tell me how to do this?

  • pre-calculus -

    since log3(x+8) = 4,
    x+8 = 3^4
    x+8 = 81
    x = 73

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