(x^2+7x)/(x^2+14x+49)

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Solution for (x^2+7x)/(x^2+14x+49) equation: 


D( x )

x^2+14*x+49 = 0

x^2+14*x+49 = 0

x^2+14*x+49 = 0

x^2+14*x+49 = 0

DELTA = 14^2-(1*4*49)

DELTA = 0

x = -14/(1*2)

x = -7 or x = -7

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

(x^2+7*x)/(x^2+14*x+49) = 0

x^2+7*x = 0

x*(x+7) = 0

x+7 = 0 // - 7

x = -7

x*(x+7) = 0

x^2+14*x+49 = 0

x^2+14*x+49 = 0

DELTA = 14^2-(1*4*49)

DELTA = 0

x = -14/(1*2)

x = -7 or x = -7

(x+7)^2 = 0

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

( x+7 )

x+7 = 0 // - 7

x = -7

( x )

x = 0

x in { -7} 

x = 0

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