80=v2+1/210(2)

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Solution for 80=v2+1/210(2) equation: 


v in (-oo:+oo)

80 = v^2+2*(1/210) // - v^2+2*(1/210)

80-v^2-(2*(1/210)) = 0

80-v^2-1/105 = 0

-1*v^2 = -8399/105 // : -1

v^2 = 8399/105

v^2 = 8399/105 // ^ 1/2

abs(v) = (8399/105)^(1/2)

v = (8399/105)^(1/2) or v = -(8399/105)^(1/2)

v in { (8399/105)^(1/2), -(8399/105)^(1/2) }

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