(x+7)/(x^2+5x-36)

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Solution for (x+7)/(x^2+5x-36) equation: 


D( x )

x^2+5*x-36 = 0

x^2+5*x-36 = 0

x^2+5*x-36 = 0

x^2+5*x-36 = 0

DELTA = 5^2-(-36*1*4)

DELTA = 169

DELTA > 0

x = (169^(1/2)-5)/(1*2) or x = (-169^(1/2)-5)/(1*2)

x = 4 or x = -9

x in (-oo:-9) U (-9:4) U (4:+oo)

(x+7)/(x^2+5*x-36) = 0

x^2+5*x-36 = 0

x^2+5*x-36 = 0

DELTA = 5^2-(-36*1*4)

DELTA = 169

DELTA > 0

x = (169^(1/2)-5)/(1*2) or x = (-169^(1/2)-5)/(1*2)

x = 4 or x = -9

(x+9)*(x-4) = 0

(x+7)/((x+9)*(x-4)) = 0

x+7 = 0 // - 7

x = -7

x = -7

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