20b^3-8b/4b

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Solution for 20b^3-8b/4b equation: 


b in (-oo:+oo)

20*b^3-(((8*b)/4)*b) = 0

20*b^3-2*b^2 = 0

20*b^3-2*b^2 = 0

2*b^2*(10*b-1) = 0

10*b-1 = 0 // + 1

10*b = 1 // : 10

b = 1/10

2*b^2 = 0

2*b^2 = 0 // : 2

b^2 = 0

b = 0

b in { 1/10, 0 }

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