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anonymous

  • 5 years ago

1/2 (8)^(2x) + 2 = 9

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  1. anonymous
    • 5 years ago
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    Solve for x.

  2. anonymous
    • 5 years ago
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    4^2x=11

  3. anonymous
    • 5 years ago
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    Now try logarithmic algebra

  4. anonymous
    • 5 years ago
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    2xln4 = ln 11

  5. anonymous
    • 5 years ago
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    that doesn't work actually... I'm not sure you can multiply 8 by 1/2 to begin with, and I'm not sure how you got 11 on the other side of the equation. What I get is more like 8^2x = 14 and then you solve with logs

  6. anonymous
    • 5 years ago
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    It is difficult to type math so I don't know what is meant by 1/2 8

  7. anonymous
    • 5 years ago
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    The equation is written like 1/2 should by multiplied by 8. the class teacher tells us to multiply by 2 in this instance on both sides to get rid of the fraction. I just wasn't sure how to bring the exponent down.

  8. anonymous
    • 5 years ago
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    That 11 should have been 7 .... 9-2

  9. anonymous
    • 5 years ago
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    ok, that makes sense

  10. anonymous
    • 5 years ago
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    You bring down the exponent by using logarithms, ln

  11. anonymous
    • 5 years ago
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    ok, thanks so much everyone!!

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spraguer (Moderator)
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