2^x + 22^x + 222^x / 3^x + 33^x + 333^x = 9/4, then x is equal to?
I'm asking this again. Please answer.
Answers
Answered by
3
I Guess it should be 4/9 instead of 9/4..For this take out 2^x common from numerator and 3^x common from denominator and the common factor i.e; (1+11^x+111^x) gets cancelled out.. Hence x should be 2
Answered by
10
Answer:
x = -2
Step-by-step explanation:
2^x + 22^x + 222^x / 3^x + 33^x + 333^x = ( 4/9 )^-1
2^x ( 1 + 11 + 111 ) / 3^x (1 + 11 + 111) = ((2/3)^2)^-1
2^x / 3^x = (2/3)^-2
(2/3)^x = (2/3)^-2
x = -2
So the value of x is -2
Similar questions