3c(c+3)-4(c+3)=3c^2+9c-4c-12=3c^2+5c-12
Answer:
c+3 i think is correct
i think it's 15 because if you use 5 and you have to do it by 3 it should be 15
A they are just reflected over the y axis
Step-by-step explanation:
D
