3/8x^4+2x^3+2x^2

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Solution for 3/8x^4+2x^3+2x^2 equation: 


x in (-oo:+oo)

(3/8)*x^4+2*x^3+2*x^2 = 0

3/8*x^4+2*x^3+2*x^2 = 0

x^2*(3/8*x^2+2*x+2) = 0

3/8*x^2+2*x+2 = 0

DELTA = 2^2-(3/8*2*4)

DELTA = 1

DELTA > 0

x = (1^(1/2)-2)/(3/8*2) or x = (-1^(1/2)-2)/(3/8*2)

x = -4/3 or x = -4

x^2 = 0

1*x^2 = 0 // : 1

x^2 = 0

x = 0

x in { -4, -4/3, 0 }

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