(3x^2+26x+33)/(x+7)

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Solution for (3x^2+26x+33)/(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+26*x+33)/(x+7) = 0

3*x^2+26*x+33 = 0

3*x^2+26*x+33 = 0

DELTA = 26^2-(3*4*33)

DELTA = 280

DELTA > 0

x = (280^(1/2)-26)/(2*3) or x = (-280^(1/2)-26)/(2*3)

x = (2*70^(1/2)-26)/6 or x = (-2*70^(1/2)-26)/6

(x-((-2*70^(1/2)-26)/6))*(x-((2*70^(1/2)-26)/6)) = 0

((x-((-2*70^(1/2)-26)/6))*(x-((2*70^(1/2)-26)/6)))/(x+7) = 0

( x-((-2*70^(1/2)-26)/6) )

x-((-2*70^(1/2)-26)/6) = 0 // + (-2*70^(1/2)-26)/6

x = (-2*70^(1/2)-26)/6

( x-((2*70^(1/2)-26)/6) )

x-((2*70^(1/2)-26)/6) = 0 // + (2*70^(1/2)-26)/6

x = (2*70^(1/2)-26)/6

x in { (-2*70^(1/2)-26)/6, (2*70^(1/2)-26)/6 }

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