Question

$a = ( {3}^{88} + {3}^{87} + {3}^{86} ) \div 117$
VA ROG!!!! E URGENT!!!!​

Answer 1

Răspuns:

$[tex]a = ( {3}^{88} + {3}^{87} + {3}^{86} ) \div 117$ \\ [/tex]

3^86(9+3+1)÷117

=13×3^86=13×9×3^84=117×3^84