How do I prove that #x=1# or #0# from solving #3^(2x+1) - 12(3^x) + 9 = 0#?
3 Answers
Split the addition of exponents into multipliciation:
Let
Put
That's it. Hope this helped!
See below
Explanation:
lets make a change
The we have
Undo the change
Explanation:
Here,
Dividing both sides by
Let ,
We have,
So,