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Math Help - anyone could help with this simple question

  1. #1
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    anyone could help with this simple question

    1/2x +1/4-1/6 these are fractions just dont know what to do with the 2x


    and
    multiplication

    (x+5)(x+3)
    x^2 +8x+15
    is that correct? if not can you help, or link a site that can.
    Thank you.

    factorising
    X^2-x-6 is this correct (x-3)(x+2)
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  2. #2
    Rhymes with Orange Chris L T521's Avatar
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    Quote Originally Posted by crashuk View Post
    1/2x +1/4-1/6 these are fractions just dont know what to do with the 2x Are you asked to combine them? If so, find the common denominator first and then combine them...


    and
    multiplication

    (x+5)(x+3)
    x^2 +8x+15
    is that correct? Correct

    factorising
    X^2-x-6 is this correct (x-3)(x+2) Correct
    Hope this helps!

    --Chris
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  3. #3
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    1/2x +1/4-1/6 these are fractions just dont know what to do with the 2x
    ok you can subtract 1/6 from 1/4 by finding the common demnomater which is 12. so you will get 3/12 - 2/12 = 1/12
    you cannot touch the 1/2x because of the x so the answer is:
    1/2x + 1/12

    and
    multiplication

    (x+5)(x+3)
    x^2 +8x+15
    is that correct? if not can you help, or link a site that can.
    Thank you. yes you are right

    factorising
    X^2-x-6 is this correct (x-3)(x+2) yep
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  4. #4
    Rhymes with Orange Chris L T521's Avatar
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    Chicago, IL
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    Quote Originally Posted by zooanimal98 View Post
    1/2x +1/4-1/6 these are fractions just dont know what to do with the 2x
    ok you can subtract 1/6 from 1/4 by finding the common demnomater which is 12. so you will get 3/12 - 2/12 = 1/12
    you cannot touch the 1/2x because of the x so the answer is:
    1/2x + 1/12
    Yes you can...the common denominator in this case would be 12\color{red}x

    So you would get \frac{6}{12x}+\frac{3x}{12x}-\frac{2x}{12x}=........

    --Chris
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