Question 751089
-2x(x+3)-(x+1)(x-2)=
-2x^2 -6x - (x^2-x-2) =
-x^2 -6x -x^2 +x +2
-5x+2

order of operations:
do everything in parenthesis first
evaluate by doing all multiplication and division from left to right, then addition and subtraction from left to right