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  1. #1
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    Default Help me maths! REP!

    Ok I need to work out the sum of the fifth square number and the cube of 3 Help

    also express the following numbers as products of thier prime factors

    48
    56 Wth !

  2. #2
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    Ok I need to work out the sum of the fifth square number and the cube of 3 Help
    The square numbers are: 1, 4, 9, 16, 25, 36, 49 etc. The fifth one is 25

    The cube of 3 is just 3 cubed, which is 3 x 3 x 3, which equals 27

    Therefore the sum of them is 25 + 27 = 52

    also express the following numbers as products of thier prime factors

    48
    56 Wth !
    Basically, all this means is what prime numbers would you multiply together to make the number. For example, with 48:

    48 can be split into 24 and 2
    24 can be split into 12 and 2
    12 can be split into 4 and 3
    4 can be split in 2 and 2

    Therefore, 48 = 2 x 2 x 2 x 2 x 3

    Which can also be written as 2^4 x 3

    I hope this makes sense

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