Answer:
-2x²(x + 1)(x - 4)
Step-by-step explanation:
Hello!
Factor:

Take out GCF
Think: What numbers add up to -3 and multiply to -4?
Answer: -4 and 1
Continue:
The complete factored form is -2x²(x + 1)(x - 4)
Answer:
36 cups of water
Step-by-step explanation:
Make a proportion, where x is the number of cups of water needed:
= 
Cross multiply and solve for x:
2x = 72
x = 36
So, 36 cups of water will be needed
1/3 because there's 4 blue marbles in a bag of 12 marbles so as a fraction that would be 4/12 cancelled down = 1/3
1 kilometer is 0.62 miles
1 kilometer is 1000 meters