3a^2+6a^3/3a+9a^2

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Solution for 3a^2+6a^3/3a+9a^2 equation: 


a in (-oo:+oo)

a*((6*a^3)/3)+3*a^2+9*a^2 = 0

2*a^4+12*a^2 = 0

t_1 = a^2

2*t_1^2+12*t_1^1 = 0

2*t_1^2+12*t_1 = 0

DELTA = 12^2-(0*2*4)

DELTA = 144

DELTA > 0

t_1 = (144^(1/2)-12)/(2*2) or t_1 = (-144^(1/2)-12)/(2*2)

t_1 = 0 or t_1 = -6

t_1 = -6

a^2+6 = 0

1*a^2 = -6 // : 1

a^2 = -6

t_1 = 0

a^2+0 = 0

a^2 = 0

1*a^2 = 0 // : 1

a^2 = 0

a = 0

a = 0

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