21z^6-27z^4/3z^3

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Solution for 21z^6-27z^4/3z^3 equation: 


z in (-oo:+oo)

21*z^6-(z^3*((27*z^4)/3)) = 0

21*z^6-9*z^7 = 0

21*z^6-9*z^7 = 0

3*z^6*(7-3*z) = 0

7-3*z = 0 // - 7

-3*z = -7 // : -3

z = -7/(-3)

z = 7/3

3*z^6 = 0

3*z^6 = 0 // : 3

z^6 = 0

z = 0

z in { 7/3, 0 }

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