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Algebra 2

posted by on .

how do i solve these two problems?

3log(base5)^(x^2+9)-6 = 0
log(base8)^(n-3) + log(base8)^n+4)= 1

can you tell me step by step as well as the answers? please and thank you

  • Algebra 2 - ,

    Here is how to do the first one. The second is similar. First simplify the algebra. Then write the log equation in a different form.

    3 log(base5)^(x^2+9) = 6
    log(base5)^(x^2+9) = 2
    Which is another way of saying:
    5^2 = 25 = x^2 + 9
    x^2 = 16
    x = + or - 4

  • Algebra 2 - ,

    how'd you get the log(base5)^(x^2+9) = 2 ?

  • Algebra 2 - ,

    I divided both sides of the first equation by 3. It's a perfectly "legal" operation when dealing with algebraic equations.

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