Answer:
-a^2 -a + 12
Step-by-step explanation:
You have to multiply all four together.
-a times a = -a^2
-a times 4 = -4a
3 times a = 3a
3 times 4 = 12
Add them all together =
-a^2 - a + 12
The answer is :
-a^2-a+12
-a(a) is -a
-a(4) is -4a
3(a) is 3a
3(4) is 12
So,
-a^2-4a+3a+12
Simplify
-4a+3a is -a bcz -4+3 is -1
Final answer
a^2-a+12
