Question

42.[4.(2 a quinta potencia -4.√49)-1]:63

Answer 1

42[4.(32-4.√49)-1]:63=

42.[4.(32-4.7)-1]:63=

42.[4.(32-28)-1]:63=

42.[4.4-1]:63=

42.[16-1]:63=

42.15:63=

630:63=

10