Question

Tìm x

2^x+2^x+4=544

cảm ơn đã trả lời kb nhé

Answer 1

Sửa lại đề

\(2^x+2^x+4=516\)

\(\Rightarrow2^x+2^x=512\)

\(\Rightarrow2^x+2^x=2^8+2^8\)

\(\Rightarrow x=8\)

Answer 2

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Answer 3

\(2^x+2^{x+4}=544\)

\(2^x\left(1+2^4\right)=544\)

\(2^x.17=544\)

\(2^x=32\)

\(2^x=2^5\)

\(\Rightarrow x=5\)