15-(4x2/2)+5

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Solution for 15-(4x2/2)+5 equation: 


x in (-oo:+oo)

5-((4*x^2)/2)+15 = 0

5-2*x^2+15 = 0

-2*x^2 = -20 // : -2

x^2 = 10

x^2 = 10 // ^ 1/2

abs(x) = 10^(1/2)

x = 10^(1/2) or x = -10^(1/2)

x in { 10^(1/2), -10^(1/2) }

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