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    Hello all

    I am trying to work out the following problem on my calculator:

    √(-3)squared- 4 x 6 x (-2)
    (sorry about the squared, couldn't get the symbol to work)

    The answer I am getting is 51. Can this be right or am I doing something wrong?

    Thanks in advance.
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    Is that [((-3)^2)^0.5]-[4*6*(-2)]?

    If so that is just
    3 + 48 = 51.
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    I think you want \sqrt{(-3)^2-4\times 6 \times (-2)}

    and what you did was \sqrt{(-3)^2}-4\times 6 \times (-2)
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    51 is correct for the what you typed out as it ends up as 3 - 4 X 6 X -2

    which ends up as 3 + 48 = 51
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    Hi dean, where does the 0.5 come from. I thought it should be the square root of the whole equation when it was worked out. Its getting late and I am getting more confused. Thanks for replying
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    RND, that makes sense so how do I get the calculator to do the whole equation. Thanks again
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    (Original post by mousey42)
    RND, that makes sense so how do I get the calculator to do the whole equation. Thanks again
    You could get a calculator with natural display such as a casio fx 83 es or just put the whole expression to be square rooted in brackets.
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    (Original post by mousey42)
    Hi dean, where does the 0.5 come from. I thought it should be the square root of the whole equation when it was worked out. Its getting late and I am getting more confused. Thanks for replying
    y^0.5 _= sqrt y
 
 
 

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