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Functional practice (Posted on 2020-12-05)

Determine all functions f:R->R such that
f(x⁴-y⁴)+4f(xy)²=f(x⁴+y⁴)

No Solution Yet Submitted by Danish Ahmed Khan

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If you can solve this task you will certainly make a top resume to become a well-paid specialist in your bright future!

Posted by Phil on 2020-12-18 07:03:57

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