1) log4(32)+log4(14)-log4(7) 2) log2(x√2+4)=3 3) log3(135)-log(35) 4) log7(49^6) 5)...

Question

1) log4(32)+log4(14)-log4(7)

2) log2(x√2+4)=3

3) log3(135)-log(35)

4) log7(49^6)

5) log2(7)/log16(49)

6) log9(100)*lg(3)

Помогите решить срочно

Answer 1

1) log4(32)+log4(14)-log4(7)=log4(448/7)=log4(64)=3

2) log2(x√2+4)=3

log(x√2+4)=log(8)

x√2+4=8

x=2√2

4) log7(49^6)=12

5) log2(7)/log16(49)=2