Answer: 
Work Shown:

Note that (h,k) = (2,-3) is the center and r = 6 is the radius. The last line is not expanded out using the FOIL rule because its common practice to leave it in
form. This form allows the reader to quickly determine the center and radius (rather than have to do a lot of algebraic steps before hand).
Answer:
4??? lol
Step-by-step explanation:
Hello,
A=7
Indeed
A(x²-2x)=-6
7x²-14x=-6
==>A=7 and -14=-2A==>A=7
Step-by-step explanation:
(92-3)x2=184 is the answer