Determine the value of x for which the expression 3x+5/x2+5+6 is undefined
assuming the usual carelessness with parentheses,
(3x+5)/(x^2+5x+6) = (3x+5) / (x+2)(x+3)
undefined where the denominator is zero
(3x+5)/(x^2+5x+6) = (3x+5) / (x+2)(x+3)
undefined where the denominator is zero