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4 January, 04:13

Which expressions represent the difference of exactly two expressions? Choose 3 answers: Choose 3 answers: (Choice

a. A 6 (x+7) - 26 (x+7) - 26 (x+7) - 26, left parenthesis, x, plus, 7, right parenthesis, minus, 2 (Choice

b. B - 2j-2j-2jminus, 2, j (Choice

c. C 4f-2g4f-2g4f-2g4, f, minus, 2, g (Choice

d. D 3xyz-103xyz-103xyz-10

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Answers (1)
  1. 4 January, 04:41
    0
    Solution

    To find out which expressions represent the difference of exactly

    two expressions

    a) 6 (x+7) - 2

    This can be simplified as

    6x + 42 - 2

    6x + 40

    Clearly this does not represent difference of the two

    expressions.

    b) - 2j

    Clearly this represents a single expression, this does not represent

    a difference of 2 expression.

    c) 4f - 2g

    Here we have 2 different expressions 4f and 2g

    Difference of these 2 expressions are 4f - 2g

    Hence, this option represent difference of exactly two

    expression

    d) 3xyz - 10

    3xtz - 10 represnts a single expression

    Here we have a single expression

    Therefore it does not represent difference of exactly 2

    expression.
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