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posted by on .

write the expression as the logarithm of a single quantity.

2 In 8 + 5 In z

My answer is 7 In 8z but I don't not think this is right!

  • math - ,

    Nope, not right.
    try these rules...
    a ln b= ln( b^a)
    and ln c + ln d= ln (cd).

  • math - ,

    use the properties of logarithms to simplify the logarithmic expression.

    log10 (9/300)

    Please explain!!

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