4^x *16^x+2=64
I suppose you mean \(4^x\times16^{x+2}=64\)
\(4^x\times16^{x+2}=64\\ 4^x\times 4^{2(x+2)}=4^3\\ 4^{x+2x+4}=4^3\\ 3x + 4 = 3\\ 3x = -1\\ x = -\dfrac{1}{3}\)
