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2x+3 = 4x+1 then x = ………………A) 4 B) 3 C) 2 D) 1 |
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Answer» Correct option is (D) 1 \(2^{x+3}=4^{x+1}\) Then \(2^{x+3}=(2^2)^{x+1}\) \(\Rightarrow\) \(2^{x+3}=2^{2x+2}\) \(\Rightarrow\) x+3 = 2x+2 \(\Rightarrow\) 2x - x = 3 - 2 \(\Rightarrow\) x = 1 Correct option is D) 1 |
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