Question

If x + y = 7xy, then show that 2 log(x + y) = log x + log y + 2 log 3.​

Answer 1

Answer:

x²+y² = 7xy

(a+b)² = a²+b²+2ab

(x+y)² -2xy = 7xy

(x+y)² = 9xy

log(x+y)² =log(9xy)

Using logarithm properties

2log(x+y) = log(x)+log(y)+2log3

here is your answer mate

I hope this will help you mate

stay safe and healthy mate

take care of yourself and your family