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anonymous

  • one year ago

Find the exact solution to the equation. 4^(12-3x)=64

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  1. Directrix
    • one year ago
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    4^(12-3x)=64 |dw:1444356801209:dw|

  2. Directrix
    • one year ago
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    Do you see what the next step is?

  3. Directrix
    • one year ago
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    The bases are the same so the exponents must be equal.

  4. anonymous
    • one year ago
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    I don't understand.

  5. Directrix
    • one year ago
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    |dw:1444356975388:dw|

  6. Directrix
    • one year ago
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    Solve that equation for x?

  7. anonymous
    • one year ago
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    x=3

  8. Directrix
    • one year ago
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    Correct.

  9. anonymous
    • one year ago
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    so when the bases are the same I can drop them to solve for x?

  10. Directrix
    • one year ago
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    We don't really drop them. It is just that if the two expressions are the same and the bases are the same, then the exponents have to be equal. I guess that is kind of a drop.

  11. anonymous
    • one year ago
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    oh ok i understand what you are saying. Thank you again

  12. Directrix
    • one year ago
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    You are welcome.

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