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16 June, 09:50

Look at this expression.

-3x6y4

x-3y-2

Which of the following is the simplest form of this expression?

+4
Answers (1)
  1. 16 June, 12:27
    0
    Multiply x and 3

    Multiply x and 1

    The x just gets copied along.

    The answer is x

    x

    3*x evaluates to 3x

    Because of the minus sign

    3x becomes - 3x

    The answer is - 3x

    Multiply y and 2

    Multiply y and 1

    The y just gets copied along.

    The answer is y

    y

    2*y evaluates to 2y

    -3*x-2*y evaluates to - 3x-2y

    The answer is - 3x-2y-2

    -3*x-2*y-2 evaluates to - 3x-2y-2

    so the first one is right
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