Question

$20 - 3( - {2)}^2 +{1}$
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Answer 1

Resposta:

$20 - 3( - {2})^{2} + 1 = \\ \\ 20 - 3(4) + 1 = \\ \\ 20 - 12 + 1 = \\ \\ 8 + 1 = \\ \\ \blue{9}$

Bons Estudos!