Question

If 2^x=√2, te solution of (2^x +1)^2 = (4^x) +3 is...

Answer 1

First thing's first, can you rewrite 4^x?

Answer 2

Mmm... i don't understand....mm four to the x power?

Answer 3

You ideally want to be able to get 4^x into a form where knowing that 2^x = √2 becomes helpful. Here's a hint:
\[(a^b)^c = (a^c)^b\]

Answer 4

X=1/2?