Answer:

Step-by-step explanation:
They are equal. When the negative sign is inside the box the absolute value is positive, when the negative sign is outside the box THEN it is negative.
The answer to the horizontal method is
4n³+2n²-6n-9
The answer to the FOIL problem is
10x²-25x-35
Hope this helps!
Answer:
Hmm graph 3, i think.
Step-by-step explanation: