Question

7 log$7log _{7} _^{12} +25 log _{5} _^{ sqrt{23} } +$

Answer 1

$7 ^{log(7)12} +5 ^{log(5)23} =12+23=35$
-----------------------------------------------
$25 ^{log(5) sqrt{23} } =(5^2) ^{log(5) sqrt{23} } =5 ^{2log(5) sqrt{23} } =5 ^{log(5)23} =23$

Answer 2

там корень из 23