Question

which is factor of 1-x^2​

Answer 1

IDK sorry but thanks for free points.

Answer 2

Answer:

$1 - {x}^{2} = 0 \\ - {x}^{2} - 0 + 1 = 0 \\ {x}^{2} + 0 - 1 = 0 \\ {x}^{2} + x - x - 1 = 0 \\ x(x + 1) - 1(x + 1) = 0 \\ (x - 1)(x + 1) = 0 \\x - 1 = 0 || x + 1 = 0 \\ x = 1 || x = - 1$

Step-by-step explanation:

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