Răspuns :
3 ⁵¹ : 3⁴⁸ + 23 ¹ x 3 ³ + 1220°=3⁵¹⁻⁴⁸+23x3³+1=3³+23x3³+1=3³(1+23)+1=27x24+1=648+1=649
[tex]3^{51} : 3^{48} + 23^{1} * 3^{3} + 1220^{0} \\ 3^{3} + 23*27 +1 \\ 27+621+1 \\ 649 [/tex]