Question

resolva:



a)   
( – 46 – 18 ) : ( 59 – 43 )

 



b)   
[ ( – 6 – 8 ) : ( – 15 + 1 ) – 3 ] · (
4 – 12 + 48 )



c)

     
2x ( 4x – 1 ) = 21

Answer 1

a) -4
b)-80
c)o x é -8