Câu trả lời:

2^x-3-3.2^x=-92

<=>2^x:2³-3.2^x=-92

<=>2^x.(\(\dfrac{1}{8}\)-3)=-92

<=>2^x.\(\dfrac{-23}{8}\)=-92

<=>2^x=32

<=>2^x=2⁵

=>x=5