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12 February, 09:46

Evaluate: 2^-2 x (13x3) - 5^3

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Answers (2)
  1. 12 February, 10:09
    0
    -115.25

    2^-2 x (13x3) - 5^3

    2^-2 x (39) - 5^3

    2^-2 x (39) - 125

    0.25 x (39) - 125

    9.75 - 125

    -115.25
  2. 12 February, 10:15
    0
    2^-2 x (13x3) - 5^3

    1 / (2^2) * 39 - 125

    1/4 * 39 - 125

    39/4 - 125

    9 3/4 - 125

    factor out - 1

    - (125-9 3/4)

    borrow to subtract the fraction

    - (124 4/4 - 9 3/4)

    - (115 1/4)

    -115 1/4
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