## Answers

Pls whats the answer

Which means, any where we see -1, we substitute it with 1 and,

anywhere we see 1, substitute it with -1.

1 = 1

Subtract 1 from both sides

1 - 1 = 0

1² - 1² = 0

(1 - 1)(1 + 1) = 0 (difference of two squares)

(-1 + 1)(-1 -1) = 0

(0)(-2) = 0

0 x (-2) = 0

We've proved it!

"if 1 = -1,

show that 1 = 1" ?