Question

Completati numerele a=2¹²⁰-2¹¹⁹-4⁵⁹ si b=9⁴⁴+3⁸⁷
Ma ajutati repede va rogg?​

Answer 1

Putem sa scriem mai simplu asa:

$a = {2}^{120} - {2}^{119} - {2}^{118}$

Dam factor comun:

$a = {2}^{118} ( {2}^{2} - 2 - 1)$

$a = {2}^{118} \times 1$

$a = {2}^{118}$

$b = {3}^{88} + {3}^{87}$

$b = {3}^{87} (3 + 1)$

$b = {3}^{87} \times 4$