Tính đạo hàm của hàm số y=x^2+2x/x-2

Guys i really need or i have to stay late up night

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

Which two transformations are applied to pentagon abcde to create a'b'c'd'e'? (4 points) translated according to the rule (x, y) ? (x + 8, y + 2) and reflected across the x-axis translated according to the rule (x, y) ? (x + 2, y + 8) and reflected across the y-axis translated according to the rule (x, y) ? (x + 8, y + 2) and reflected across the y-axis translated according to the rule (x, y) ? (x + 2, y + 8) and reflected across the x-axis