WILL GIVE BRANLIEST

In each circle, chords AB and CD intersect at point X...
1.) AX = 8 and XB = 5; Find (CX)(XD).
2.) AX = 6, CX = 9, and XD = 2; Find XB.
3.) CX = 16, XD = 4, and AX = XB; Find AB.