Respostas

2014-04-19T13:09:12-03:00
Raiz de 75   =8,660254038
raiz de 12=3,464101615
raiz de 18=4,242640687

total  7,882

2014-04-19T13:10:10-03:00
√75+√12 - √18=
√3 . 5² + √2² . 3  - √2 . 3² =
5√3 + 2√3 - 3√2=
7√3 -3√2