(c^2+11c+18)/(c+2)

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Solution for (c^2+11c+18)/(c+2) equation: 


D( c )

c+2 = 0

c+2 = 0

c+2 = 0

c+2 = 0 // - 2

c = -2

c in (-oo:-2) U (-2:+oo)

(c^2+11*c+18)/(c+2) = 0

c^2+11*c+18 = 0

c^2+11*c+18 = 0

DELTA = 11^2-(1*4*18)

DELTA = 49

DELTA > 0

c = (49^(1/2)-11)/(1*2) or c = (-49^(1/2)-11)/(1*2)

c = -2 or c = -9

(c+9)*(c+2) = 0

c+9 = 0

c+9 = 0 // - 9

c = -9

c = -9

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