" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
(x-1)²-1
(x² - 2 x + 1) -1
x² - 2 x + 1 - 1 (se anulan los 1)
x² - 2 x
Por lo tanto la respuesta es literal c.
Espero te sirva :)