The domain of the equation y = 3x/(x^2 - 5x - 4) is the set of all real numbers with the exception of the values x = A and x = B. What is A + B?
In order for the domain to not work, the denominator.
x2-5x-4=0
\(x = {5 \pm \sqrt{25+16} \over 2}\)
A = (5+√41)/2
B = (5-√41/2)
A+B = (5+√41+5-√41)/2
A+B = 5
