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2^{n+2}-2^{n+1}=2^{n
please solve this equation
need urgently for FA - 4}

${2}^{\mathrm{n}+2}-{2}^{\mathrm{n}+1}={2}^{\mathrm{n}}\phantom{\rule{0ex}{0ex}}\Rightarrow {2}^{\mathrm{n}+1}\left[2-1\right]={2}^{\mathrm{n}}\phantom{\rule{0ex}{0ex}}\Rightarrow {2}^{\mathrm{n}+1}={2}^{\mathrm{n}}\phantom{\rule{0ex}{0ex}}\mathrm{Now}\mathrm{comparing}\mathrm{the}\mathrm{bases}\phantom{\rule{0ex}{0ex}}\Rightarrow \mathrm{n}+1=\mathrm{n}\phantom{\rule{0ex}{0ex}}\Rightarrow 1=0\phantom{\rule{0ex}{0ex}}\mathrm{which}\mathrm{is}\mathrm{not}\mathrm{possible}\phantom{\rule{0ex}{0ex}}$

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