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17-09-2020
Mathematics

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-2z^2 = -72 solve for z

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CSMedrano CSMedrano

17-09-2020

Answer:

z=6

Step-by-step explanation:

[tex]-2z^2=-72\\\\z^2=\frac{-72}{-2} \\\\z^2=36\\\\z^2=2^2*3^2\\\\z=\sqrt{2^2*3^2} \\\\z=2*3\\\\z=6[/tex]

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