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    Hello,

    Ive really struggled to figure this question out and cant find a way in my math book or online. it is as follows

    Simplify
    2cT(3-T)+5T(c-11T)

    im getting thoroughly confused at 2cT x -T =

    If you could show me how you get the correct answer and the process i would really appreciate it!

    Thanks

    Nomad
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    (Original post by nomad992)
    x
    Show us your workings so far and we'll be able to help you
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    (Original post by nomad992)
    Hello,

    Ive really struggled to figure this question out and cant find a way in my math book or online. it is as follows

    Simplify
    2cT(3-T)+5T(c-11T)

    im getting thoroughly confused at 2cT x -T =

    If you could show me how you get the correct answer and the process i would really appreciate it!

    Thanks

    Nomad
    -T is just (-1 x T) so think of it as : 2cT x -T = 2 x C x T x -1 x T= -2 x C x T2 = 2CT2
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    ok so

    2cT x 3 = 6cT
    2cT x -T = 2c-T ** I really really do not know what to make of that aha

    5T x c = 5Tc
    5T x -11T = -55T^2

    simplified answer would be -55T^2 + 11Tc +2c -T

    Ive only started studying again after 6 years and even then i wasnt very good!
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    (Original post by )
    -T is just (-1 x T) so think of it as : 2cT x -T = 2 x C x T x -1 x T= -2 x C x T2 = 2CT2
    ok so i think im on the verge of understanding this but 2 x c = 2c why doesnt 2 x T become 2T rather than T^2?
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    (Original post by nomad992)
    ok so
    2cT x 3 = 6cT
    2cT x -T = 2c-T ** I really really do not know what to make of that aha

    5T x c = 5Tc
    5T x -11T = -55T^2

    simplified answer would be -55T^2 + 11Tc +2c -TIve only started studying again after 6 years and even then i wasnt very good!
    So the way you put 2c-T looks as though you are taking the T away.

    When you multiply you did it right when working out 5T x -11T the only difference is that instead of -11 it's -1. So it would be:
    2cT x -1T.
    Look at my previous comment
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    (Original post by nomad992)
    ok so i think im on the verge of understanding this but 2 x c = 2c why doesnt 2 x T become 2T rather than T^2?
    Because it's 2cT x -1 x T just like the the second one, there are two T's multiplying together.

    If it were 2 x T it would become 2T
    but it's 2 x -1 x T x T x C
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    so if i work out 2 x -1 x T x T x C
    I get

    -2
    2T
    2T
    2C

    so i can get most of it with the bottom three i get your answer of 2CT^2 but what do i do with the -2?
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    (Original post by nomad992)
    so if i work out 2 x -1 x T x T x C
    I get

    -2
    2T
    2T
    2C

    so i can get most of it with the bottom three i get your answer of 2CT^2 but what do i do with the -2?
    Sorry you didn't quote me so i didn't know you posted another
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    (Original post by nomad992)
    so if i work out 2 x -1 x T x T x C
    I get

    -2
    2T
    2T
    2C

    so i can get most of it with the bottom three i get your answer of 2CT^2 but what do i do with the -2?
    okay look:
    2 x -1 x T x T x C:
    Split it up so:
    2 x -1 = -2
    T x T = T2
    C=C
    So now put them together and you get -2T2C
    • Thread Starter
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    (Original post by )
    okay look:
    2 x -1 x T x T x C:
    Split it up so:
    2 x -1 = -2
    T x T = T2
    C=C
    So now put them together and you get -2T2C
    Thanks alot, that really helps!
 
 
 
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