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Math Help - PEMDAS Help

  1. #1
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    PEMDAS Help

    Can I get some help on this problem, in detail please?

    7 { 6 [ 8*( T - 6 ) +12 ] + 2* ( T + 11 ) } ^2
    7 { 6 [ 8t - 48 + 12 ] + 2t + 22} ^ 2
    7 { 6 [ 8t - 60 ] + 2t + 22} ^ 2
    7 { 48t - 360 + 2t + 22} ^ 2
    7 { 50t - 338 } ^ 2

    Now, at this point do i do 50t ^ 2 - 338^2 (which is 114244)?
    Then 7 { 50t^2 - 114244}
    Then 350T^2 - 799708?
    If thats not correct can someone help me fix this?
    Then
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  2. #2
    A Plied Mathematician
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    7 { 6 [ 8t - 60 ] + 2t + 22} ^ 2
    This line has an error in it. It's the third line down from the top.
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  3. #3
    Master Of Puppets
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    \displaystyle (a-b)^2 = a^2-2ab+b^2  \neq a^2-b^2
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  4. #4
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    you told me in the problem
    7 { 6 [ 8*( T - 6 ) +12 ] + 2* ( T + 11 ) } ^2
    7 { 6 [ 8t - 48 + 12 ] + 2t + 22} ^ 2
    7 { 6 [ 8t - 60 ] + 2t + 22} ^ 2
    7 { 48t - 360 + 2t + 22} ^ 2
    7 { 50t - 338 } ^ 2

    7 { 6 [ 8t - 60 ] + 2t + 22} ^ 2
    this line has an error in it?
    what should I have done differentely?
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  5. #5
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    What's -48 + 12?
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