(3x^2+25x+27)/(x+7)

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Solution for (3x^2+25x+27)/(x+7) equation: 


D( x )

x+7 = 0

x+7 = 0

x+7 = 0

x+7 = 0 // - 7

x = -7

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

(3*x^2+25*x+27)/(x+7) = 0

3*x^2+25*x+27 = 0

3*x^2+25*x+27 = 0

DELTA = 25^2-(3*4*27)

DELTA = 301

DELTA > 0

x = (301^(1/2)-25)/(2*3) or x = (-301^(1/2)-25)/(2*3)

x = (301^(1/2)-25)/6 or x = (-(301^(1/2)+25))/6

(x+(301^(1/2)+25)/6)*(x-((301^(1/2)-25)/6)) = 0

((x+(301^(1/2)+25)/6)*(x-((301^(1/2)-25)/6)))/(x+7) = 0

( x+(301^(1/2)+25)/6 )

x+(301^(1/2)+25)/6 = 0 // - (301^(1/2)+25)/6

x = -((301^(1/2)+25)/6)

( x-((301^(1/2)-25)/6) )

x-((301^(1/2)-25)/6) = 0 // + (301^(1/2)-25)/6

x = (301^(1/2)-25)/6

x in { -((301^(1/2)+25)/6), (301^(1/2)-25)/6 }

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