15-35/7x2+3x4

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Solution for 15-35/7x2+3x4 equation: 


x in (-oo:+oo)

3*x^4-((35/7)*x^2)+15 = 0

3*x^4-5*x^2+15 = 0

t_1 = x^2

3*t_1^2-5*t_1^1+15 = 0

3*t_1^2-5*t_1+15 = 0

DELTA = (-5)^2-(3*4*15)

DELTA = -155

DELTA < 0

x belongs to the empty set

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