Question

1) log½x=-3
2) log5(x+3)=2

Answer 1

1) X=(1/2)^-3
X=8

2)x+3=5^2
x+3=25
x=25-3
x=22

Проверка:
1) log 1/2(8)=-3
log 2^-1 (2^3)=-3
-3log2(2)=-3
-3=-3

2)log5(22+3)=2
log5(25)=2
log5(5^2)=2
2=2

Answer 2

Проверка нужна.