If (8x+32)/ (x^2 -16) is meant, then factor the numenerator: 8(x+4) factor the denominator: (x+4)(x-4) resulting in: 8(x+4)/(x+4)(x-4) the (x+4) term in numerator and denominator cancel, leaving 8/(x-4). The solution for x is all real numbers, except...