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6 April, 14:29

Select True or False.

The expression 5x - 3 (2x - 4) is equivalent to the expression 12 - x.

True

False

+3
Answers (2)
  1. 6 April, 14:43
    0
    True

    Step-by-step explanation:

    5x - 3 (2x - 4)

    Expand

    5x - 6x + 12

    -x + 12

    12 - x

    () are called "parentheses" or "brackets "

    Whatever is inside the () needs to be treated as a "package".

    So when multiplying: multiply by everything inside the "package".

    Multiplying negatives has special rules: a negative times a positive gives a negative, but multiplying two negatives gives a positive:

    In that case - 3 · - 5 = + 15 (a positive answer)
  2. 6 April, 15:35
    0
    Answer:true

    Step-by-step explanation:

    5x-3 (2x-4) =

    1) solve the parentheses

    5x-6x-12=0

    2) we just can rest the X

    5x-6x=X

    3) X-12=0

    4) The order of factors does not alter the product

    12-X=0
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