4b^2-16/25

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Solution for 4b^2-16/25 equation: 


b in (-oo:+oo)

4*b^2-(16/25) = 0

4*b^2-16/25 = 0

4*b^2 = 16/25 // : 4

b^2 = 4/25

b^2 = 4/25 // ^ 1/2

abs(b) = 2/5

b = 2/5 or b = -2/5

b in { 2/5, -2/5 }

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