(x^2)/(x^2-3x-18)

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Solution for (x^2)/(x^2-3x-18) equation: 


D( x )

x^2-(3*x)-18 = 0

x^2-(3*x)-18 = 0

x^2-(3*x)-18 = 0

x^2-3*x-18 = 0

x^2-3*x-18 = 0

DELTA = (-3)^2-(-18*1*4)

DELTA = 81

DELTA > 0

x = (81^(1/2)+3)/(1*2) or x = (3-81^(1/2))/(1*2)

x = 6 or x = -3

x in (-oo:-3) U (-3:6) U (6:+oo)

(x^2)/(x^2-(3*x)-18) = 0

(x^2)/(x^2-3*x-18) = 0

x^2-3*x-18 = 0

x^2-3*x-18 = 0

DELTA = (-3)^2-(-18*1*4)

DELTA = 81

DELTA > 0

x = (81^(1/2)+3)/(1*2) or x = (3-81^(1/2))/(1*2)

x = 6 or x = -3

(x+3)*(x-6) = 0

(x^2)/((x+3)*(x-6)) = 0

1*x^2 = 0 // : 1

x^2 = 0

x = 0

x = 0

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