Answer:
(x-2)^2=5 (first option)
Step-by-step explanation:
If you expand (x-2)^2, it equals x^2-4x+4. You then subtract the 5 off the right side and it becomes x^2-4x-1.
I did the work to show you what I mean. Pardon the bad handwriting ^-^'
n = 30m + 1,200
let n = gallons
m = minutes
There are 30 gallons per minute, so 30 is multiplied by the minutes, and because there are already 1,200 gallons of water, you add 1,200
I think it will be combined and simplified
-12 b + 6 c + 18
-4 b + 8 c + 12 - 8 b - 2 c + 6
