Question

T 1
6. Factorization of x2 - 1 is:
1
(a)
(x + 1)(x + 1)
(b) (x - 1)(x - 1)
(c) (x - 1) (x + 1)
(d) (x² - 1)(x² +1)​

Answer 1

Step-by-step explanation:

${x}^{2} - 1 \\ = (x) {}^{2} - (1) {}^{2} \\ (( {a}^{2} - {b}^{2} ) = (a + b)(a - b)) \\ using \: the \: above \: formula \\ (x + 1)(x - 1) \: \: answer$