If 3^x+ 1 = 9^x-3. find the value of 2^1+x
Answers
Answered by
0
Answer:
3x+9x+1-3 =12x+2 that's it bro
Answered by
3
Answer:
256
Step-by-step explanation:
3^x+1 = 9^x-3
=> 3^x+1 = (3²)^x-3
(if a^m = a^n ; then m=n)
∴ 3^x+1 = 3^2x-6 => x+1 = 2x - 6
=> x+1+6-2x = 0
=> -x +7 = 0
=>-x = -7
=> x=7
∴ 2^1+x = 2^1+7
=> 2^8
=256
Similar questions