1/2x2=b

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Solution for 1/2x2=b equation: 


x in (-oo:+oo)

(1/2)*x^2 = b // - b

(1/2)*x^2-b = 0

1/2*x^2 = b // : 1/2

x^2 = 2*b

x^2 = 2*b // ^ 1/2

abs(x) = 2^(1/2)*b^(1/2)

x = 2^(1/2)*b^(1/2) or x = -(2^(1/2)*b^(1/2))

x in { 2^(1/2)*b^(1/2), -(2^(1/2)*b^(1/2)) }

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