Question

Calcule as expressões numéricas:

Answer 1

a)

$( + {3})^{2} = 3 \times 3 = 9 \\ 9 \div 3 + 5 = \\ 3 + 5 = \\ 8$

b)

$( + {12})^{2} = 1 2 \times 12 = 144 \\ 144 \div 72 - 3 = \\ 2 - 3 = \\ - 1$

c)

$( + {1})^{4} = 1 \times 1 \times 1 \times 1 = 1 \\ ( + {8})^{2} = 8 \times 8 = 64 \\ ( - {2})^{4} = ( - 2) \times ( - 2) \times ( - 2) \times ( - 2) = 16 \\ 64 \div 16 = 4 \\ 1 - 4 = \\ - 3$

Espero ter ajudado em algo.