Question

2puterea x + 2puterea y = 257

Answer 1

2^x + 2^y = 257

2^8 = 256

ptr x = 8 avem ,

2^8 + 2^y = 257

256 + 2^y = 257

2^y = 257 - 256

2^y = 1 => 2^y = 2^0 => y = 0

solutiile sunt :

(x; y) = (8; 0) si (0; 8)
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2^8 + 2^0 = 2^0 + 2^8 = 257