Question

Como calcular 2/5+(0.5).(-3)²+(-2)⁴.√81

Answer 1

2/5 + ( 5/10).(+9) + (+16 ) . ( 9 )  =
2/5 + (45/10) + ( 144) =
2/5 + 45/10 + 144/1 =
mmc = 50
( 20 + 225 + 7200)/50 = 7445/50 = 1489/10 *** ou 148,9 ***