Question

5-{3²-{(√25 -√4)+3]:6}

Answer 1

Boa tarde 

5 - ( 3² - (( √25 - √4) + 3)/6) 

= 5 - ( 9 - (5 - 2 + 3)/6) 
= 5 - ( 9 - 6/6 )
= 5 - ( 9 - 1) = 5 - 8 = -3