(x^2-13x+4)/(x^2+2x-35)

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Solution for (x^2-13x+4)/(x^2+2x-35) equation: 


D( x )

x^2+2*x-35 = 0

x^2+2*x-35 = 0

x^2+2*x-35 = 0

x^2+2*x-35 = 0

DELTA = 2^2-(-35*1*4)

DELTA = 144

DELTA > 0

x = (144^(1/2)-2)/(1*2) or x = (-144^(1/2)-2)/(1*2)

x = 5 or x = -7

x in (-oo:-7) U (-7:5) U (5:+oo)

(x^2-(13*x)+4)/(x^2+2*x-35) = 0

(x^2-13*x+4)/(x^2+2*x-35) = 0

x^2-13*x+4 = 0

x^2-13*x+4 = 0

DELTA = (-13)^2-(1*4*4)

DELTA = 153

DELTA > 0

x = (153^(1/2)+13)/(1*2) or x = (13-153^(1/2))/(1*2)

x = (3*17^(1/2)+13)/2 or x = (13-3*17^(1/2))/2

(x-((13-3*17^(1/2))/2))*(x-((3*17^(1/2)+13)/2)) = 0

x^2+2*x-35 = 0

x^2+2*x-35 = 0

DELTA = 2^2-(-35*1*4)

DELTA = 144

DELTA > 0

x = (144^(1/2)-2)/(1*2) or x = (-144^(1/2)-2)/(1*2)

x = 5 or x = -7

(x+7)*(x-5) = 0

((x-((13-3*17^(1/2))/2))*(x-((3*17^(1/2)+13)/2)))/((x+7)*(x-5)) = 0

( x-((13-3*17^(1/2))/2) )

x-((13-3*17^(1/2))/2) = 0 // + (13-3*17^(1/2))/2

x = (13-3*17^(1/2))/2

( x-((3*17^(1/2)+13)/2) )

x-((3*17^(1/2)+13)/2) = 0 // + (3*17^(1/2)+13)/2

x = (3*17^(1/2)+13)/2

x in { (13-3*17^(1/2))/2, (3*17^(1/2)+13)/2 }

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