Answer: -4n3+12n2+7n-9
Step-by-step explanation: it basically the opposite sign (positive or negative) switched, and the order backwards. hope that helped
Answer:
37.5 is the answer
Step-by-step explanation:
all you do is just multiply the 2 numbers
so I think the answer is very difficult ask to someone else
Step-by-step explanation:
xy=4
2x-y+2=0