Please assist me with this problem. I do not understand. Thank you

In a previous algebra class, you may have been asked to "simplify" a rational x4 expression such as 2 x 16 x4 x4 _ 1 A "correct solution" is often depicted by: x2_16 = m _ m x4_1 x216 _ x+4 This is true for almost all values of x; however, it is not true for ALL values of x. x4 1 2 and . x 16 x+4 Thus, it appears that In terms of domains of expressions discuss the equality of In other words, for what values of x do the two expressions evaluate to real numbers which are equal to each other? This set of x -values is the same as the domain of which expression