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  • 3 years ago

Write the following as a single power of 2? 2^1-x/4^x+2

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  1. ZeHanz
    • 3 years ago
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    If you write it in the equation editor:\[\frac{ 2^{1-x} }{ 4^{x-2} }\]This is already more clear. Now remember that 4=2², so write it as:\[\frac{ 2^{1-x} }{ (2^2)^{x-2} }\] Use these rules:\[(a^b)^c=a^{bc}\]and\[\frac{ a^b }{ a^c }=a^{b-c}\]to finish it off!

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