Question

X
${x }^{2} - 1 = 0$
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Answer 1

i hope it helps you

Answer:

The value of x is 1

Answer 2

${x}^{2} - 1 = 0$

${x}^{2} - {1}^{2} = 0$

$(x + 1)(x - 1) = 0$

$x = - 1 \: \: and \: x = 1$