Решение во вложении, надеюсь видно.

Verified answer

1.= log1/4(64*4)= log1/4 (256) =-4

2.= log1/2(64/8)= log1/2 (8)=-3

3.= log1/7(49*7)=-3

4.= log3(297/11)= log3(27)=3

5.= log7(441/9)= log7(49)=2

6.=24+6*(-4)=0

7.=3+4*(-2)=3-8=-5