2 X(X - = X - 1 B) (2X - 2 - (X + 3)2 = 0 2X(X - - (X - ...

1) 2 x(x - 1) = x - 1 b) (2x - 1)

2

- (x + 3)

2

= 0

2x(x - 1) - (x - 1) = 0 [(2x - 1) - (x + 3)][(2x - 1) + (x +