👤

Scrie sub forma unor puterii:5la1997+20×5la1996
(9la3×6la4)la5:(9la2×6la5)la4
2la1997×3la1998-2la1998:3la1997


Răspuns :

(9³x6⁴)⁵:(9²x6⁵)⁴=(9¹⁵x6²⁰):(9⁸x6²⁰)=9¹⁵⁻⁸x6²°⁻²°=9⁷x6°=9⁷x1=9⁷

2¹⁹⁹⁷x3¹⁹⁹⁸-2¹⁹⁹⁸x3¹⁹⁹⁷=2¹⁹⁹⁷x3¹⁹⁹⁷(3-2)=2¹⁹⁹⁷x3¹⁹⁹⁷