You would need to use the distance formula.
Distance = Sqrt((x2-x1)^2+(y2-y1)^2)
Plug in your numbers
Distance = Sqrt((12+4)^2+(12-18)^2)
Distance = 17.09
6*3 = 18
6*9 = 54
so 18 +54 is the correct answer
(3x + 1) (2x + 7)
Factored by grouping
Answer:
Step-by-step explanation: