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28 January, 14:18

Using A (x) = x (48-x) find the following: a. A (10) b. A (20) c. A (28) d. A (x) = 0

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  1. 28 January, 16:20
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    A (x) = x (-x + 48)

    A (x) = x (-x) - x (48)

    A (x) = - x² - 48x

    A (10) = - (10) ² - 48 (10)

    A (10) = - 100 - 480

    A (10) = - 580

    A (x) = x (-x + 48)

    A (x) = x (-x) - x (48)

    A (x) = - x² - 48x

    A (20) = - (20) ² - 48 (20)

    A (20) = - 400 - 960

    A (20) = - 1360

    A (x) = x (-x + 48)

    A (x) = x (-x) - x (48)

    A (x) = - x² - 48x

    A (28) = - (28) ² - 48 (28)

    A (28) = - 784 - 1344

    A (28) = - 2128

    A (x) = x (-x + 48)

    A (x) = x (-x) - x (48)

    A (x) = - x² - 48x

    A (0) = - (0) ² - 48 (0)

    A (0) = 0 - 0

    A (0) = 0
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