Does it help to know that 6 - 5 = 1 ?

Algebra Level 3

It is given that x,yZ+x,y\in\Bbb{Z^+} and they satisfy the equation given below:

k=05(52k+62k)=6x5y.\large\prod_{k=0}^5\left(5^{2^k}+6^{2^k}\right)=6^x-5^y.

What is the value of x+y?x+y?


Note: This problem is not original. It is adapted from a question posted on Math SE.

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