Answer:
b
Step-by-step explanation:
-a-(a-b)
Distribute the negative sign to get -a+a+b
-a cancels out a, and you're left with b.
Answer:a²-ab
since the negative symbol is on the outside of the parenthesis all values inside the parenthesis get reversed. so:
-a(-a+b)
Then multiply by -a:
a²-ab
