Question

Calcule as expressões numéricas: a) (7-8). [-8. (3-11)-9. (12-10)+13] me ajuda
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Answer 1

Resposta:

(7-8). [-8. (3-11)-9. (12-10)+13]

=−1(−8(3−11)−9(12−10)+13)

=−1((−8)(−8)−9(12−10)+13)

=−1(64−9(12−10)+13)

=−1(64−(9)(2)+13)

=−1(64−18+13)

=−1(46+13)

=(−1)(59)

=−59

Explicação passo a passo: