x^2-7/2x=15

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Solution for x^2-7/2x=15 equation: 


x in (-oo:+oo)

x^2-((7/2)*x) = 15 // - 15

x^2-((7/2)*x)-15 = 0

x^2+(-7/2)*x-15 = 0

x^2-7/2*x-15 = 0

DELTA = (-7/2)^2-(-15*1*4)

DELTA = 289/4

DELTA > 0

x = ((289/4)^(1/2)+7/2)/(1*2) or x = (7/2-(289/4)^(1/2))/(1*2)

x = 6 or x = -5/2

x in { -5/2, 6 }

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