No it does not. You are mixing two things up. One is the equation given by the question stem. On solving that, as you can see in my solution above, you can come to the conclusion that x = 5.
Second is what the question is asking, it does not ask us the value of x but instead, it asks x^2 - 1.
Equating x^2 - 1 to a product of (2x + 2) and (3x - 3) is bizarre and there is no logical reason why one should do that. That is why I am assuming you mixed things up.
Hope it helps.
jfranciscocuencag wrote:
Hello!
What's wrong with solving it like the following?
\(x^2 - 1\) = (x+1)(x-1)
(x+1) = 2x +2
(x-1) = 3x - 3
Why it does not reach the same answer?
\(x^2 - 1\) = (2x +2) (3x - 3)
Shouldn't be the same?
Kind regards!
_________________
Regards,
Gladi
“Do. Or do not. There is no try.” - Yoda (The Empire Strikes Back)