Xy(x + y); use x = -2 and y = -1

-6

Step-by-step explanation:

2(-1-2)=-6

-4+-2

Step-by-step explanation:You would substitute the -2 for every xx and -1 for every y and that will get -2 times -1(-2+-1) and then you would times -2 and -1 to get positive 2 then you would do 2 times-2 and 2 times -1 to get your answer

false

step-by-step explanation:

whenever we assume a point on a plane then according to geometry it will definitely have 2 dimensions and if it assumed in space then it will have 3 dimensions.