exam Maths Puzzle Numerical Ability

Every day at noon a ship leaves Los Angeles for Singapore, and at the same instant a ship leaves Singapore for Los Angeles.

Each trip lasts exactly eight days.

How many

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HI
please help me with this problem. I am really stressed and need immidiate help. any help will be apreciated.the question is

how do we find the rate triangle of points giv what value should K be to make the following expression a perfect sum of squares:

2K(x)^2 - 24xy + 9(y)^2