Question 1128351

Angelina factored {{{(x - 4)^8}}} and wrote that it was equal to {{{(x^2 - 4^2)^2(x^2 + 4^2)}}}.

Angela's solution is incorrect because when multiplied you get a completely different answer then the one she had.

proof:
she did

{{{(x^2 - 4^2)^2 =x^4 -2*4^2+4^4 =x^4 - 4^4}}}

{{{(x^4 - 4^4) (x^2 + 4^2) = x^2 - 4^6}}}

correction:

{{{(x - 4)^8=(x - 4)(x - 4)(x - 4)(x - 4)(x - 4)(x - 4)(x - 4)(x - 4)}}}