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8 April, 19:27

Evaluate using factors: (7.62) ² - (2.38) ² ?

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Answers (2)
  1. 8 April, 19:40
    0
    52.4.

    Step-by-step explanation:

    This is the difference of 2 squares:

    a^2 - b^2 = (a - b) (a + b)

    (7.62^2 - (2.38) ^2

    = (7.62 - 2.38) (7.62 + 2.38)

    = 5.24 * 10

    = 52.4
  2. 8 April, 19:53
    0
    52.4

    Step-by-step explanation:

    a²-b² = (a-b) (a+b)

    Similarly,

    (7.62) ² - (2.38) ²

    = (7.62-2.38) (7.62+2.38)

    = (5.24) (10)

    = 52.4
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