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anonymous

  • one year ago

Solve log 2x2 + 2 = 6. Round to the nearest thousandth if necessary.

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  1. Nnesha
    • one year ago
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    is it \[\huge\rm log 2x^2 +2 =6\] ?

  2. anonymous
    • one year ago
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    I'm getting \[50\sqrt{2} \] or just about 70.711

  3. Nnesha
    • one year ago
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    is it \[\huge\rm log (2x^2 +2 )=6\] ? or 2 is base ?

  4. trwatkins1
    • one year ago
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    can help :( ???

  5. trwatkins1
    • one year ago
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    *cant

  6. anonymous
    • one year ago
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    its um log 2x^2 + 2 = 6 (log and 2x^2 are seperate)

  7. Nnesha
    • one year ago
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    oh so this is right \[\huge\rm log (2x^2 +2 )=6\] 2 isn't base

  8. Nnesha
    • one year ago
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    alright can you please explain how you got the answer :=) what was ur first step ? :=)

  9. Nnesha
    • one year ago
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    hmm \[\huge\rm log_2 (x^2+2)=6\] \[\huge\rm log (2x^2+2)=6\] which is ur question ?

  10. anonymous
    • one year ago
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    it's the second one

  11. anonymous
    • one year ago
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    I subtract 2 from both sides log10 (2x^2) + 2 -2 = 6-2 log10 (2x^2)=4 I then used a = logb (b^a) so... 4= log10 (10^4) log10 (2x^2) = log10 (10^4) then all this other stuff/ not sure I want to type it all out lol

  12. anonymous
    • one year ago
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    @Nnesha

  13. triciaal
    • one year ago
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    |dw:1440784656572:dw|

  14. triciaal
    • one year ago
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    do you have answer choices?

  15. anonymous
    • one year ago
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    yeah

  16. anonymous
    • one year ago
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    let me type them up

  17. triciaal
    • one year ago
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    still not sure of the original

  18. anonymous
    • one year ago
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    a. 707.106 b. 1.414 c. 502√ , or about 70.711 d. 52√ , or about 7.071

  19. anonymous
    • one year ago
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    @triciaal

  20. anonymous
    • one year ago
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    @welshfella hey can you help?

  21. Nnesha
    • one year ago
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    wait is there a parentheses ??

  22. Nnesha
    • one year ago
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    \[\huge\rm log (2x^2 +2 )=6\] if ur question is like this then you can't move the 2 from the parentheses it's (2x^2+2)

  23. Nnesha
    • one year ago
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    \[\huge\rm log ~2x^2 +2 =6\] if there isn't any parentheses then you can subtract 2

  24. Nnesha
    • one year ago
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    so which one is right first one or 2nd one ? is it \[\huge\rm log ~2x^2 +2 =6\] `OR` \[\huge\rm log (2x^2 +2 )=6\]

  25. Nnesha
    • one year ago
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    if `2nd` is right then 1st step) convert log to exponential form :=)

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