x^2-23/5x-20

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Solution for x^2-23/5x-20 equation: 


x in (-oo:+oo)

x^2-((23/5)*x)-20 = 0

x^2+(-23/5)*x-20 = 0

x^2-23/5*x-20 = 0

DELTA = (-23/5)^2-(-20*1*4)

DELTA = 2529/25

DELTA > 0

x = ((2529/25)^(1/2)+23/5)/(1*2) or x = (23/5-(2529/25)^(1/2))/(1*2)

x = ((2529/25)^(1/2)+23/5)/2 or x = (23/5-(2529/25)^(1/2))/2

x in { (23/5-(2529/25)^(1/2))/2, ((2529/25)^(1/2)+23/5)/2 }

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