ladyblu35 ladyblu35

03-04-2015
Mathematics

contestada

-z2-z-19
Z=-7 what is the answer please

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Аноним Аноним

03-04-2015

[tex]put\ the\ value\ of\ z=-7\ to\ the\ expression\ -z^2-z-19:\\\\-(-7)^2-(-7)-19=-49+7-19=\boxed{-61}[/tex]

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Panoyin Panoyin

03-04-2015

-z² - z - 19
-(-7)² - (-7) - 19
-(49) + 7 - 19
-49 + 7 - 19
-42 - 19
-61

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