20=x^2/45-X

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Solution for 20=x^2/45-X equation: 


x in (-oo:+oo)

20 = (x^2)/45-X // - (x^2)/45-X

X-((x^2)/45)+20 = 0

-1/45*x^2 = -(X+20) // : -1/45

x^2 = 45*(X+20)

x^2 = 45*(X+20) // ^ 1/2

abs(x) = 3*5^(1/2)*(X+20)^(1/2)

x = 3*5^(1/2)*(X+20)^(1/2) or x = -(3*5^(1/2)*(X+20)^(1/2))

x in { 3*5^(1/2)*(X+20)^(1/2), -(3*5^(1/2)*(X+20)^(1/2)) }

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