Question

Matemática ensino fundamental 2​

Answer 1

2)

$(2^5^0:2^4^0):2^8\\2^1^0:2^8=2^2=4$

resposta:4

3)

$[4^2-(2*\sqrt{9}+1)]$

$[4^2-(2*3+1)]$

$4^2-7\\16-7=9$

resposta:9