Question

Log3 x²=2
Log5 x³=3
Log5 (x²+4x)=1
Log2 (x-5)=4
Log(x-5) 4=2​

Answer 1

Log3 x²=2 => x²=3² => x=3

Log5 x³=3 => x³=5³ => x=5

Log5 (x²+4x)=1 => x²+4x-5=0 s:{1, -5}

Log2 (x-5)=4 => x-5=16 => x=21

Log(x-5) 4=2 => (x-5)² = 2² => x=7