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Tasha
Lv 7
Tasha asked in Science & MathematicsMathematics · 1 decade ago

Condensing logarithms ?

How would you condense this into a single quantity

6[ln(x) – ln (x + 3) – ln (x – 3)]

2 Answers

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  • 1 decade ago
    Favorite Answer

    6[ln(x) – ln(x + 3) – ln(x – 3)] --->

    6[ln(x) – ln(x + 3) – ln(x – 3)] = 6[ln(x) – {ln(x + 3) + ln(x – 3)}]

    6[ln(x) – {ln(x + 3) + ln(x – 3)}] = 6[ln(x) – ln{(x + 3)(x – 3)}]

    6[ln(x) – ln{(x + 3)(x – 3)}] = 6[ln(x) – ln(x^2 - 9)]

    6[ln(x) – ln(x^2 - 9)] = 6 ln[x/(x^2 - 9)] = ln[x/(x^2 - 9)]^6

  • 1 decade ago

    ln(a) + ln(b) = ln(axb)

    ln(a) - ln(b) = ln(a/b)

    6[ln(x) – {ln (x + 3) + ln (x – 3) } ]

    6 [ ln(x) - ln{ (x+3)X(x-3) } ]

    6 [ ln(x) - ln(x^2- 9) ]

    6 ln { x / (x^2- 9) }

    Good Luck ;)

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