Question

x^2 + (0) -1 factorise it​

Answer 1

Answer:

$x = + - 1$

Step-by-step explanation:

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

${x}^{2} = 1$

so,

$x = + - 1$

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Answer 2

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

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