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10 June, 05:14

Find the product mentally.

(z - 12) (z + 12)

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  1. 10 June, 06:14
    0
    (a-b) (a+b) = a² - b²

    (z-12) (z+12) = z² - 12² = z² - 144

    Your final answer is z² - 144.
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