Question

Factories x2-1?

please!!!!!

Answer 1

${x }^{2} - 1 \\ use \: formula \\ {a}^{2} - {b}^{2} = (a + b)(a - b) \\ = > (x - 1)(x + 1)$
and solution of this ...

1 and -1.

Answer 2

x^2-1
(x)^2-(1)^2
according to a^2-b^2,it is (a+b)(a-b)
(x+1)(x-1)