Question

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

Answer 1

is y=3 in options?

Answer 2

oh yes - well spotted hartnn

Answer 3

8^1 = 2^3

Answer 4

nice eyeball problem (and solution)

Answer 5

y = 1

y = 3

y = –3

y = –1

Answer 6

y=3 it is :)

Answer 7

8(y-2)= 2y
8y-16=2y
6y=16
y =8/3 check by plugging into original equations

8(8/3-2) =2(8/3)

64/3 -16 =16/3

64/3 - 48/3 =16/3
16/3 = 16/3 it checks