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    8x - 66 = 2x

    8x + 66 = 2x

    2x + 4x^2

    3d x 5d

    show working out
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    11
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    2x + 4x^2
    15d

    Do your own damn homework.
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    (Original post by im so academic)
    8x - 66 = 2x

    8x + 66 = 2x

    2x + 4x^2

    3d x 5d

    show working out
    No need to be quite so demanding. We'll help you, but it's not really our policy to just do your work for you.

    1. For the first one, try adding 66 onto both sides. (Notice that the -66 and the +66 on the right will 'cancel out'.) Then subtract 2x. If it helps, think of 'x' as 'apples' - if you've got 8 apples and then 'subtract' 2 apples, how many do you have left? (And again, notice that the 2x and the -2x will 'cancel out' on the right hand side.) If you can't do that, post your working.
    2. The second requires exactly the same method.
    3. What are you required to do on this question?
    4. You can simplify this by doing 3*5 and then d*d. Multiplication can be done in any order - remember that all you're doing is 3*d*5*d, and you can swap the order of the '5' and the 'd'.
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    (Original post by rbilling)
    11
    -11
    2x + 4x^2
    15d

    Do your own damn homework.
    Rude much? Wouldn't be so bad if you'd got all the answers right...
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    dude what you trying to get for the 3rd one...... please wouldn't go a miss either
 
 
 
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Updated: June 9, 2008

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