graceGlMindnor graceGlMindnor

08-02-2016
Mathematics

contestada

Find the product mentally.
(z - 12)(z + 12)

Respuesta :

08-02-2016

(a-b)(a+b) = a² - b²

(z-12)(z+12) = z² - 12² = z² - 144

Your final answer is z² - 144.

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