Question

Resolva:
{1+2•[4+3•(40-5•2)-5]}•4-70

Answer 1

{1+2•[4+3•(40-5•2)-5]}•4-70
{1+2. [4+3.(40-10)-5]}.4-70
{1+2. [4+3.30-5]}.4-70
{1+2. [4+90-5]}.4-70
{1+2. [94-5]}.4-70
{1+2.89}.4-70
{1+178}.4-70
179.4-70
716-70
646