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Pertanyaan

Nyatakan dalam bentuk pangkat positif. e. 72 m − 3 × ( 3 m ) − 2

Nyatakan dalam bentuk pangkat positif.

e.  

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A. Acfreelance

Master Teacher

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Ingat! Sifat bilangan berpangkat Sehingga, Dengan demikian, dinyatakan dalam pangkat positif menjadi

Ingat!

Sifat bilangan berpangkat 

open parentheses a b close parentheses to the power of m equals a to the power of m cross times b to the power of m

a to the power of negative m end exponent equals 1 over a to the power of m 

a to the power of m cross times a to the power of n equals a to the power of m plus n end exponent

Sehingga,

table attributes columnalign right center left columnspacing 0px end attributes row cell 72 m to the power of negative 3 end exponent cross times left parenthesis 3 m right parenthesis to the power of negative 2 end exponent end cell equals cell 72 cross times m to the power of negative 3 end exponent cross times 3 to the power of negative 2 end exponent cross times m to the power of negative 2 end exponent end cell row blank equals cell open parentheses 72 cross times 3 to the power of negative 2 end exponent close parentheses cross times open parentheses m to the power of negative 3 end exponent cross times m to the power of negative 2 end exponent close parentheses end cell row blank equals cell open parentheses 72 cross times 1 over 3 squared close parentheses cross times open parentheses m to the power of negative 3 plus left parenthesis negative 2 right parenthesis end exponent close parentheses end cell row blank equals cell 72 over 9 cross times m to the power of negative 5 end exponent end cell row blank equals cell 8 cross times m to the power of negative 5 end exponent end cell row blank equals cell 8 cross times 1 over m to the power of 5 end cell row blank equals cell 8 over m to the power of 5 end cell end table

Dengan demikian,  table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell 72 m to the power of negative 3 end exponent cross times left parenthesis 3 m right parenthesis to the power of negative 2 end exponent end cell end table dinyatakan dalam pangkat positif menjadi table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell 8 over m to the power of 5 end cell end table

 

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