Question 29490
by saying "for all x not equal to -4" they are just saying that division by
zero is not allowed (-4 + 4 in the denominator)
 x^2 + 12x +32 /(x + 4) 
factoring numerator 
(x + 8)(x + 4) / (x + 4)
cancel (x + 4) / (x + 4)
x + 8 answer