Find the value of m if $2^m-2^{m-1}-4=0$

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$2^m-2^{m-1}-4=0$ ആയാൽ m ൻ്റെ വില കണ്ടെത്തുക

A27

Answer:

$2^m-2^{m-1}-4=0 \implies2^m-2^{m-1}=4$

$2^{m-1}(2-1)=4\implies2^{m-1}=2^2$

$m-1=2\implies{m=3}$

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