(25 1/8- 20.5) solve it

Find the value of x for which line a is parallel to line b

How is the equation of this circle written in standard form? x2 + y2 - 6x + 14y = 142 a) (x - 3)2 + (y + 7)2 = 200 b) (x+ 3)2 + (y - 7)2 = 200 (x - 6)2 + (y + 14)2 = 142 d) (x+6)2 + (y- 14)2 = 142

Solve the inequaliy: (x^2+2)(x−2)^2(6−2x)> 0