3/4x^4-4x^3-4x^2=0

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Solution for 3/4x^4-4x^3-4x^2=0 equation: 


x in (-oo:+oo)

(3/4)*x^4-(4*x^3)-(4*x^2) = 0

(3/4)*x^4-4*x^3-4*x^2 = 0

3/4*x^4-4*x^3-4*x^2 = 0

x^2*(3/4*x^2-4*x-4) = 0

3/4*x^2-4*x-4 = 0

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

DELTA = 28

DELTA > 0

x = (28^(1/2)+4)/(3/4*2) or x = (4-28^(1/2))/(3/4*2)

x = 2/3*(2*7^(1/2)+4) or x = 2/3*(4-2*7^(1/2))

x^2 = 0

1*x^2 = 0 // : 1

x^2 = 0

x = 0

x in { 2/3*(4-2*7^(1/2)), 2/3*(2*7^(1/2)+4), 0 }

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