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8 April, 14:52

Evaluate 2x2 - 4y2 when x = 2 and y = - 3

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  1. 8 April, 16:40
    0
    -288

    Step-by-step explanation:

    2x² - 4y²

    when x = 2 and y = - 3

    substitute the value x = 2 and y - 3

    2 (2) ² - 4 (-3) ²

    2 (4) * - 4 (9)

    8 * - 36

    -288
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