X^2-1/2x-15=0

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Solution for X^2-1/2x-15=0 equation: 


x in (-oo:+oo)

X^2-((1/2)*x)-15 = 0

X^2+(-1/2)*x-15 = 0

X^2-1/2*x-15 = 0 // - X^2-15

-1/2*x = -(X^2-15) // : -1/2

x = (-(X^2-15))/(-1/2)

x = -2*(15-X^2)

x = -2*(15-X^2)

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