Răspuns:
[tex]\bf a)~~7^{14}\cdot 7^{31}=7^{14+31}= 7^{45}[/tex]
[tex]\bf b)~~16^{11}\cdot 16^{22}= 16^{11+22}= 16^{33}[/tex]
[tex]\bf c)~~3^{3}\cdot 3^{8}= 3^{3+8}= 3^{11}[/tex]
[tex]\bf d)~~5^{9}\cdot 5^{14}= 5^{9+14}= 5^{23}[/tex]
[tex]\bf e)~~23^{12}\cdot 23^{45}= 23^{12+45}= 23^{57}[/tex]
[tex]\bf f)~~5^{32}\cdot 5^{121}= 5^{32+121}= 5^{153}[/tex]
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[tex]\bf a)~~2^{91}: 2^{21}=2^{91-21}= 2^{70}[/tex]
[tex]\bf b)~~75^{84}: 75^{81}=75^{84-81}= 75^{3}[/tex]
[tex]\bf c)~~3^{25}: 3^{18}=3^{25-18}= 3^{7}[/tex]
[tex]\bf d)~~5^{91}: 5^{52}=5^{91-52}= 5^{39}[/tex]
[tex]\bf e)~~7^{34}: 7^{9}=7^{34-9}= 7^{25}[/tex]
[tex]\bf f)~~14^{45}: 14^{20}=14^{45-20}= 14^{25}[/tex]
[tex]==pav38==[/tex]
