Question

13-[(-2)-(-7)+(+3²)] Faça a conta
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Answer 1

Olá,

Vamos lá,

= 13-[(-2)-(-7)+(+3²)]
= 13-[ -2 + 7+9]
= 13-[ 14]
= - 1

Answer 2

13-[(-2)-(-7)+(+3²)] 13-[(-2)-(-7)+(+9)] 13-[(-2)-(+2)] 13-(-4) 13+4 17