Question

srie patratele perfecte pana la 100 care au ultima cifra para

Answer 1

4,16,36,64 sunt singurele patrate perfecte ce indepinesc conditia ceruta !

Answer 2

$2^{2} =4 \\ 4^{2} = 16 \\ 6^{2} = 36 \\ 8^{2} = 64.$