You can only add/subtract like terms so:
2a+ab+2b+4a^2-3ab+9
2a-2ab+2b+4a^2+9 (the only like terms were ab and -3ab)
Answer: A~ 45
Step-by-step explanation:
Answer:
3 is the answer
Step-by-step explanation:
5.........4............3..............2...............1
so 3 follows 4