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Bentuk sederhana dari bentuk pangkat 84×42÷29 adalah ....

Pertanyaan

Bentuk sederhana dari bentuk pangkat 8 to the power of 4 cross times 4 squared divided by 2 to the power of 9 adalah ....

  1. 2 to the power of 6 

  2. 2 to the power of 7 

  3. 2 to the power of 8 

  4. 2 to the power of 9 

N. Puspita

Master Teacher

Jawaban terverifikasi

Jawaban

jawaban yang tepat adalah B.

Pembahasan

Gunakan sifat bilangan berpangkat berikut.

table attributes columnalign right center left columnspacing 2px end attributes row cell a to the power of m cross times a to the power of n end cell equals cell a to the power of m plus n end exponent end cell row cell a to the power of m divided by a to the power of n end cell equals cell a to the power of m minus n end exponent end cell row cell open parentheses a to the power of m close parentheses to the power of n end cell equals cell a to the power of m cross times n end exponent end cell end table

Perhatikan perhitungan berikut.

table attributes columnalign right center left columnspacing 2px end attributes row cell 8 to the power of 4 cross times 4 squared minus 2 to the power of 9 end cell equals cell open parentheses 2 cubed close parentheses to the power of 4 cross times open parentheses 2 squared close parentheses squared divided by 2 to the power of 9 end cell row blank equals cell 2 to the power of 3 cross times 4 end exponent cross times 2 to the power of 2 cross times 2 end exponent divided by 2 to the power of 9 end cell row blank equals cell 2 to the power of 12 cross times 2 to the power of 4 divided by 2 to the power of 9 end cell row blank equals cell 2 to the power of 12 plus 4 end exponent divided by 2 to the power of 9 end cell row blank equals cell 2 to the power of 16 minus 9 end exponent end cell row cell 8 to the power of 4 cross times 4 squared minus 2 to the power of 9 end cell equals cell 2 to the power of 7 end cell end table 

Jadi, jawaban yang tepat adalah B.

97

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