Answer:
Step-by-step explanation:

3x - 4 + x^2 - 1 + 2x^2 - 15
3x^2 + 3x - 20
I wasn't sure if you wanted me to solve for x, but I did anyways.
x ≈ 1.86, or -2.86
1500 is the answer I did this a while ago I think not sure
Answer:
k = 1
Step-by-step explanation:
I will upload a picture with all of my work.