Question

y=x^3-2x+1 para x = -2

Answer 1

$y = x {}^{3} - 2x + 1$

$\boxed{x = - 2}$

$y = ( - 2) {}^{3} - 2 \: . \: ( - 2) + 1$

$y = - 8 + 4 + 1$

$y= - 8 + 5$

$\boxed{y = - 3}$

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