15x^4-10x^3+7/-15x^4

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Solution for 15x^4-10x^3+7/-15x^4 equation: 


x in (-oo:+oo)

15*x^4+(7/(-15))*x^4-(10*x^3) = 0

15*x^4+(7/(-15))*x^4-10*x^3 = 0

218/15*x^4-10*x^3 = 0

2*x^3*(109/15*x-5) = 0

109/15*x-5 = 0 // + 5

109/15*x = 5 // : 109/15

x = 5/109/15

x = 75/109

2*x^3 = 0

2*x^3 = 0 // : 2

x^3 = 0

x = 0

x in { 75/109, 0 }

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