Question

7) Resolva as expressões.
a) 32. 32 + 7 =
b) (- 9+ 3)2 + 15 =
c) (23)2 - 42 - (1/2)2 =
d) (32) + (42:42) =​

Answer 1

Olá, bom dia!

Resposta:

a) 1031

b) 3

c) 3

d) 33

Explicação passo-a-passo:

$\mathsf{</p><p>a) 32 \cdot \ 32 + 7 = 1031 \\ \\</p><p>\ \ 1024 + 7 \\ \\</p><p>\ \ \ 1031 \\ \\</p><p></p><p>b) \ (- 9 + 3) \cdot 2 + 15 =3 \\ \\</p><p>\ \ (-6) \cdot 2 + 15 \\ \\</p><p>\ \ -12 + 15 \\ \\</p><p>\ \ \ 3 \\ \\</p><p></p><p>c) \ (23)2 - 42 - \left(\dfrac{1}{2} \right)2 = 3 \\ \\</p><p>\ \ 46 -42 - 1 \\ \\</p><p>\ \ 4 - 1 \\ \\</p><p>\ \ \ 3 \\ \\</p><p></p><p>d) \ (32) + (42:42) = 33 \\ \\</p><p>\ \32 + 1 \\ \\</p><p>\ \ \ 33 </p><p>}$