Answer:
Step-by-step explanation:
The solution to the graph of a system of equations is where they intercept. Here, it is at about .
2x+6=20
Q1: (x-1) * (x+1) * (x-2) * (x+2)
Q2: x'1 = -1/3, x'2 =2
Q3: i dont get this one sry