Question

efetue 42.[4.(32-4.√49)-1]:63

Answer 1

Olá,

vamos lá,

=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 
= 42.15:63
= 630 : 63
= 10