Question

4·49 в степени log₇8

Answer 1

4*7^log(7)64=4*64=256

Answer 2

$a^{ log_{a}b} = b\\ \\4* 49^{ log_{7} 8} =4* (7^{2}) ^{ log_{7}8 } =4* (7^{ log_{7} 8} )^{2} = \\ \\ 4* (8)^{2} =4*64=256$