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Math Help - evaluate the expressions

  1. #1
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    evaluate the expressions

    14 + 3squared divided by 6
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  2. #2
    Forum Admin topsquark's Avatar
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    Quote Originally Posted by duckpluckie
    14 + 3squared divided by 6
    14+\frac{3^2}{6} or \frac{14+3^2}{6} or \frac{(14+3)^2}{6}?

    -Dan
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  3. #3
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    solving the expression

    Hi Dan,

    My computer doesn't have the symbols for math but it is the second problem you listed. I am also trying to find the square of 1/6 and 2/5

    Thank you for your help 14 + 3squared
    ____________
    6
    My book says 21 but I can't follow it.
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  4. #4
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    Hello, duckpluckie!

    My computer doesn't have the symbols for math
    You can still type mathematical expression . . . <b>if</b> you're careful.

    Use ^ for exponents . . . and use LOTS of parenthese.

    14 + 3^2 . . . means: 14, plus 3 . . . or 14 + 9 = 23

    If you want "fourteen plus 3, all squared", write: (14 + 3)^2


    "14 plus 3 squared divided 6: 14 + 3/6 = 14 + (9/6) = 14 + 1 = 15

    If you want "fourteen plus 3 squared, all divided by 6", write: (14 + 3^2)/6


    but it is the second problem you listed: \,\frac{14\,+\,3^2}{6}

    My book says 21. .?? . . . no way!
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  5. #5
    MHF Contributor Quick's Avatar
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    Quote Originally Posted by duckpluckie
    I am also trying to find the square of 1/6 and 2/5
    All you need to do is use a calculator for these ones. Just type in \sqrt{\;\;\;} and then type \left(1\div6\right)
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  6. #6
    Forum Admin topsquark's Avatar
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    Quote Originally Posted by duckpluckie
    Hi Dan,

    My computer doesn't have the symbols for math but it is the second problem you listed. I am also trying to find the square of 1/6 and 2/5

    Thank you for your help 14 + 3squared
    ____________
    6
    My book says 21 but I can't follow it.
    \frac{14+3^2}{6}=\frac{14+9}{6}=\frac{23}{6}

    Since 23 is prime, this fraction is simplified as far as it can go, so we are done.

    -Dan
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  7. #7
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    Quote Originally Posted by duckpluckie
    Hi Dan,

    My computer doesn't have the symbols for math but it is the second problem you listed. I am also trying to find the square of 1/6 and 2/5

    Thank you for your help 14 + 3squared
    ____________
    6
    My book says 21 but I can't follow it.
    Hi, duckpluckie,

    if your book says that the result is 21 then there is a typo:

    \frac{14\cdot 3^2}{6}=\frac{14 \cdot 9}{6}=14\cdot\frac{3}{2}=21

    Bye

    EB
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