(x^2+6x-27)/(x-3)=0

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Solution for (x^2+6x-27)/(x-3)=0 equation: 


D( x )

x-3 = 0

x-3 = 0

x-3 = 0

x-3 = 0 // + 3

x = 3

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

(x^2+6*x-27)/(x-3) = 0

x^2+6*x-27 = 0

x^2+6*x-27 = 0

DELTA = 6^2-(-27*1*4)

DELTA = 144

DELTA > 0

x = (144^(1/2)-6)/(1*2) or x = (-144^(1/2)-6)/(1*2)

x = 3 or x = -9

(x+9)*(x-3) = 0

x+9 = 0

x+9 = 0 // - 9

x = -9

x = -9

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