Question

Which of the following is the solution to the equation 8^(y – 2) = 2^y ?
y = 1

y = 3

y = –3 ---> My Answer


y = –1

Answer 1

@bradely

Answer 2

@Hero

Answer 3

First step...rewrite the left side like this..since 8 is just 2^3
\[2^{3(y-2)}=2^{y}\]

Answer 4

Now you can just set 3(y-2) = y since you have the same base (2) on both sides

Answer 5

You shouldn't get -3

Answer 6

i dont understand this

Answer 7

You dont know what to do next? Or you don't understand one of my steps?

Answer 8

your steps actually helped me but i dont understand what to do next i would ask my teacher but she gets mad when i ask her to explain things to me

Answer 9

Like I said a few lines up, just solve 3(y-2) = y