How many values of [math]x[/math] ([math]x in mathbb{Z}[/math]) are there such that [math](x ^ 2 – x – 1) ^ {x + 2} = 1[/math]?
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How many values of [math]x[/math] ([math]x in mathbb{Z}[/math]) are there such that [math](x ^ 2 – x – 1) ^ {x + 2} = 1[/math]?
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