Answer:
c
Step-by-step explanation:
hope it helps!!!!!!!!!!!!!!
-3x²-10x+3
if A=2x-7x²+3 and B=4x²-12x, then A+B:
(2x-7x²+3)+(4x²-12x)=-3x²-10x+3.
hmmmm im thinking
C is the answer to your question