Question

5^2-4log5 по оснаванию 25

Answer 1

$5^2 - 4log_{25}5 = 25 - 4 * 0.5 = 23 \\ 5^{2 - 4log_{25}5} = 5^{2 - 2} = 5^0 = 1$

Answer 2

$5^{2} -4* log_{25} =25-4* \frac{1}{2}log_{5} 5=25-2=23$