Resposta :
fatorando 18, 50, 98.
18I2
9I3
3I3
1 =2*3² => [tex]3 \sqrt{2}[/tex]=3*1,41=4,23
50I2
25I5
5I5
1 =2*5² =>5*[tex]5 \sqrt{2}[/tex]=5*5*1,41=35,25
98I2
49I7
7I7
1 2*7² => [tex] 7 \sqrt{2}[/tex]=7*1,41=9,87
A=4,23+35,25+9,87
A=49,35