r^3/2-8r^1/2=0

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Solution for r^3/2-8r^1/2=0 equation: 


r in (-oo:+oo)

(r^3)/2-((8*r^1)/2) = 0

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

1/2*r^3-4*r = 0

r*(1/2*r^2-4) = 0

1/2*r^2 = 4 // : 1/2

r^2 = 8

r^2 = 8 // ^ 1/2

abs(r) = 2*2^(1/2)

r = 2*2^(1/2) or r = -(2*2^(1/2))

r = 0

r = 0

r in { 2*2^(1/2), -(2*2^(1/2)), 0 }

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