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Thread: Is this correct

  1. #1
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    Is this correct

    x(x-y) if x=-2 y=-3
    -2(-2-3)
    -2*-5=-10
    Benita

  2. #2
    Elite Member stapel's Avatar
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    What is the sign on the product of two negatives?

    Eliz.

  3. #3
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    sign on the product of two negatives is positive

    the sign on the product of two negatives is a positive and thanks
    Benita

  4. #4
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    What do two negative signs make? e.g. a - -b = ?

  5. #5
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    Two Negative signs = a positive sign

    doesnt two negative signs= a positive sign
    Benita

  6. #6
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    Yup, check your substitution of y again.

  7. #7
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    so the answer would be 10 and thanks i appreciate this My success in math sucks
    Benita

  8. #8
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    Have a closer look at what you have substituted inside the brackets. Then do the multiplication by -2 again.

  9. #9
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    x(x-y)if x=-2 y=-3
    -2(-2+3)
    -2*1=-2
    Benita

  10. #10
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    Well done, Benita!

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