0:00:09.863,0:00:12.413
Completing the square,

0:00:12.413,0:00:14.250
completing the square,

0:00:14.250,0:00:17.808
halve the x and put in brackets.

0:00:17.871,0:00:19.520
Subtract the square,

0:00:19.584,0:00:21.412
of that number there,

0:00:21.461,0:00:23.463
we have completed the square!

0:00:23.608,0:00:25.487
Completing the square,

0:00:25.487,0:00:27.460
completing the square,

0:00:27.460,0:00:31.017
halve the x and put in the brackets

0:00:31.029,0:00:32.535
Subtract the square,

0:00:32.545,0:00:34.313
of that number there,

0:00:34.410,0:00:37.141
we have completed the square.