Respostas

2014-04-26T02:37:08-03:00
√9·√2025÷80  

I) Deve-se fatorar 2025. 2025 = 9²·5²

√9·√9²·5² ÷ 80 
3·9·5 ÷ 80
27·5 ÷ 80 
135 ÷ 80
27 /16 #