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  1. #1
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    Solve

    Solve for X:

    3^(4x) greater-than or equal to 27
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  2. #2
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    Quote Originally Posted by oneway1225 View Post
    Solve for X:

    3^(4x) greater-than or equal to 27
    3^{4x} \ge 3^3

    can you finish?
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  3. #3
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    no I'm not sure what to do next
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  4. #4
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    Quote Originally Posted by oneway1225 View Post
    no I'm not sure what to do next
    if 3^{4x} \ge 3^3 , then wouldn't it make sense that

    4x \ge 3 ?
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  5. #5
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    x=3/4 because 3^3=27
    Take natural log of both sides.
    x>(1/4)*(ln27)/(ln3)
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  6. #6
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    Quote Originally Posted by Tim28 View Post
    x=3/4 because 3^3=27
    Take natural log of both sides.
    x>(1/4)*(ln27)/(ln3)
    Actually, x \geq \frac{3}{4}.
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