Simplify Expressions...1

Discussion in 'Basic Math' started by nycmathguy, Apr 1, 2022.

  1. nycmathguy

    nycmathguy

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    A review of basic mathematics.

    IMG_20220401_134226.jpg

    IMG_20220401_134235.jpg
     
    nycmathguy, Apr 1, 2022
    #1

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  2. nycmathguy

    MathLover1

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    correct

    tip: 3^-6*3^4 is easier to do this way:
    3^-6*3^4=(1/3^6)*3^4=3^4/3^6=3^(4-6)=3^-2=1/3^2=1/9
     
    MathLover1, Apr 1, 2022
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  3. nycmathguy

    EmptySetBlues

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    The general rule is:
    n^i * n^j = n^(i+j) (And n^i * n^j *n^k = n^(i+j+k), etc)
    so, most directly,
    (3^-6) * (3^4)
    = 3^(-6+4)
    = 3^-2
    = 1/ (3^2)
    = 1/9

    Spot this relationship right away and constantly to streamline polynomial problems.
     
    EmptySetBlues, Apr 1, 2022
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  4. nycmathguy

    nycmathguy

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    Ok. Good to know.
     
    nycmathguy, Apr 1, 2022
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  5. nycmathguy

    nycmathguy

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    Very good. Good to know. Good to review basic math occasionally.
     
    nycmathguy, Apr 1, 2022
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