Answer:
1. x²
2. xy
3. 2x
4. 4x
5. -4y
6. -8
Step-by-step explanation:
Blank 1:
-x·x=x²
Blank 2:
y·x=xy
Blank 3:
2·x=2x
Blank 4:
-x·-4=4x
Blank 5:
y·-4=-4y
Blank 6:
2·-4=-8
