39k^4-9k^3/4

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Solution for 39k^4-9k^3/4 equation: 


k in (-oo:+oo)

39*k^4-((9*k^3)/4) = 0

39*k^4+(-9/4)*k^3 = 0

39*k^4-9/4*k^3 = 0

3*k^3*(13*k-3/4) = 0

13*k-3/4 = 0 // + 3/4

13*k = 3/4 // : 13

k = 3/4/13

k = 3/52

3*k^3 = 0

3*k^3 = 0 // : 3

k^3 = 0

k = 0

k in { 3/52, 0 }

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