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26 June, 21:19

Which shows two expressions that are equivalent to (Negative 7) (Negative 15) (Negative 5) ?

(Negative 7) (Negative 75) and (Negative 1) (525)

(Negative 1) (525) and (35) (Negative 15)

(35) (Negative 15) and (115) (negative 5)

(Negative 1) (525) and (115) (negative 5)

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Answers (2)
  1. 26 June, 21:34
    0
    -525 and (35) (-15)

    Step-by-step explanation:

    You can calculate the result of this expression as follows:

    (-7) (-15) (-5) = (-1) ³ (7*15*5) = - (7*15*5) = -525

    as, (-1) ^n=1 if n is even and (-1) ^n=-1 if n is odd.

    We already saw that - 525 is equivalent to the expression. Furthermore:

    (-7) (-15) (-5) = (-15) (-7) (-5) = (-15) (-1) ² (7*5) = (-15) (7*5) = (-15) (35).

    so the second expression is also equivalent.

    You can discard the third and fourth answers because 115*5=575≠525. The first one is also discarded, because (-7) (75) = 525≠-525.
  2. 26 June, 21:42
    0
    (-1) (525) and (35) (-15)

    Step-by-step explanation:

    above me is incorrect
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