9-36x^2/8

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Solution for 9-36x^2/8 equation: 


x in (-oo:+oo)

9-((36*x^2)/8) = 0

(-9/2)*x^2+9 = 0

-9/2*x^2 = -9 // : -9/2

x^2 = 2

x^2 = 2 // ^ 1/2

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

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

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

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