20z^5-16z^4/4z^2

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Solution for 20z^5-16z^4/4z^2 equation: 


z in (-oo:+oo)

20*z^5-(z^2*((16*z^4)/4)) = 0

20*z^5-4*z^6 = 0

20*z^5-4*z^6 = 0

4*z^5*(5-z) = 0

5-z = 0 // - 5

-z = -5 // * -1

z = 5

4*z^5 = 0

4*z^5 = 0 // : 4

z^5 = 0

z = 0

z in { 5, 0 }

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