Question

5+4x2+6-2x2-1
Insert the parenthesis so that it has a value of 19 then show why your expression has a value of 19

Answer 1

Hi. 5+4x2+6-2x2-1 . ((5+4)*2)+(6-(2*2)-1) ; (9*2)+(6-4-1) ; 18 + 1 =19.