Postby **ucim** » Tue Feb 13, 2018 2:17 am UTC

It's a hint. Take a look at your original equation and see if you recognize parts of it there, where you can substitute them. That may simplify the equation.

Also, look for symmetries - a set of solutions where a=b. (Check also for a = -b, since (-b)^{2} = b^{2}) Note - there may not be any.

Then look for solutions where a=kb. Simply substitute kb for a, reducing the number of variables (k is a constant). If there are solutions of that form, you should be able to figure out what k must be.

Then look for solutions where a=0 or b=0.

Hope that gets you started.

Jose

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