4Z^2-20z-100=0

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Solution for 4Z^2-20z-100=0 equation: 



4^2-20Z-100=0

We add all the numbers together, and all the variables

-20Z-84=0

We move all terms containing Z to the left, all other terms to the right

-20Z=84

Z=84/-20

Z=-4+1/5

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