Angelina factored (x - 4)8 and wrote that it was equal to (x2 - 42)2(x2 + 42). use complete sentences to explain how you could confirm whether angela’s solution is correct. prove your conclusion mathematically.

There are several ways to confirm that the two expressions are equal. One method is to simply factor the first expression and see it you get a result equal to the second expression. An easier method is to set a value for x and substitute it to the two expressions. If the resulting value is that same, this means that the two expressions are equal.