Please help , i will mark brainliest

Step-by-step explanation:

see attachment

part b, the GCF is 2, so divide both sides by two and get the smae answer as part a

hope it helped and im sorry if it turns out wrong

A. x=\frac{-7+3\sqrt{5}}{2},\:x=-\frac{7+3\sqrt{5}}{2}  B. I'm not sure

Step-by-step explanation:

the formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle. if a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point.