help HELP

[quasi vine]

(2^(x+1)) + (5 * 2^(x-1)) = 2^4 solve for x

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[outer canyon]

$2^{x+1} +5\times2^{x-1} = 2^{4}$

[hushed elbow]

!𒐪 ɹɐupoɯ⇂ㄥ8𝟝 𒐪!

[sterile plover]

You can factorize 2^x

So 2^x(2+5*2^(-1))=2^4