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28 September, 17:35

Explain, in at least 3 steps, how to solve this exponential equation with unequal bases.

2^x=3^x+1

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  1. 28 September, 19:04
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    Explanation;

    To solve an exponential Equation with different bases we need to the following steps;

    1. Isolate the exponential part of the equation. If there are two exponential parts put one on each side of the equation.

    2^x=3^x+1

    2. Introduce logarithm of each side of the equation;

    log 2^x = log 3^x+1

    3. Then apply power property to rewrite the exponent.

    x log 2 = (x+1) log 3

    4. Then Solve for the variable;

    x log 2 = log 3 + x log 3

    x log 2 - x log 3 = log 3

    x (log 2 - log 3) = log 3

    and x = log 3 / (log 3 - log 2)
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