(15a^4-10a^2+10)/5a

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Solution for (15a^4-10a^2+10)/5a equation: 


a in (-oo:+oo)

a*((15*a^4-(10*a^2)+10)/5) = 0

a*((15*a^4-10*a^2+10)/5) = 0

(a*(15*a^4-10*a^2+10))/5 = 0

a = 0

(15*a^4-(10*a^2)+10)/5 = 0

(15*a^4-10*a^2+10)/5 = 0

(15*a^4-(10*a^2)+10)/5 = 0 // * 5

15*a^4-(10*a^2)+10 = 0

15*a^4-10*a^2+10 = 0

t_1 = a^2

15*t_1^2-10*t_1^1+10 = 0

15*t_1^2-10*t_1+10 = 0

DELTA = (-10)^2-(4*10*15)

DELTA = -500

DELTA < 0

a*((15*a^4-(10*a^2)+10)/5) = 0  <=>  a = 0 or a*((15*a^4-(10*a^2)+10)/5) = 0  <=>  (15*a^4-(10*a^2)+10)/5 = 0

a = 0

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