Question

Find the x!

Answer 1

so i'm a little confused here ,should the 2 above log be above x or?

Answer 2

or should i put t=log2(x) ?

Answer 3

and the first one would be t^2 ..

Answer 4

fist you let u=Log(2)x

then we have a quadratic u^2 -3u - 4 =0

solve the quadratic for you and then substitute back the u

Answer 5

yes i did that..thanks :)

Answer 6

i just but t instead of u :)

Answer 7

yes thats fine

Answer 8

what did you get for x?