Answer:
The correct answer is 54 units
6 can go into 59, nine times. Therefore 9 times 6 equals 54
Completing the square follows the principle of taking

and converting it into

where d is the 'correctional number' as I like to call it - i.e. the number that converts the expanded bracket into the +c, since the expanded bracket will give us

.
In this case, 2/2=1 so we have the first part:

.
Expanding this gives us

. We need c to be 9, so we can just add 8.
Putting this together:

Now we can solve it more easily.
Rearranging:
Dillion has 4 blue marbles and 12 red marbles
And max has 96 red marbles
Answer:
i have made it in above picture