Question

$1 - x - {x}^{2} = - (x - 1) - 167$
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Answer 1

1-x-x²=-х+1-167

1-х-х²=-х-166

1-х-х²+х+166=0

-х²+167=0

-х²=-167

х²=167

х1= √167

х2=-√167