Answer:
A: It decreased trade because soldiers no longer protected the oases.
I took it on E2020. I hope I've helped. If you need further explanation, please comment below.
Answer:i One way to solve the quadratic equation x2 = 9 is to subtract 9 from both sides to get one side equal to 0: x2 – 9 = 0. The expression on the left can be factored:
Explanation:
