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Pertanyaan

7. Hasil dari ( 3 p − 2 r 2 p 2 q 3 r ​ ) 2 × ( p 2 q 2 6 p − 3 q − 4 r 6 ​ ) adalah ....

7. Hasil dari  adalah ....

  1. 8 over 9 p cubed q r to the power of 6 

  2. 8 over 3 p cubed q r to the power of 6  

  3. 8 over 9 p cubed r to the power of 6   

  4. 8 over 3 p cubed r to the power of 6 

  5. 8 over 3 p to the power of 6 r cubed 

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P. Tessalonika

Master Teacher

Mahasiswa/Alumni Universitas Negeri Medan

Jawaban terverifikasi

Jawaban

jawaban yang benar adalah D.

jawaban yang benar adalah D.

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Pembahasan

Untuk soal persamaan eksponen tersebut berlaku sifat-sifat berikut: Dengan demikian, hasil dari persamaan eksponen tersebut yaitu: Oleh karena itu, jawaban yang benar adalah D.

Untuk soal persamaan eksponen tersebut berlaku sifat-sifat berikut:

  • a to the power of p over a to the power of q equals a to the power of p minus q end exponent space dengan space a not equal to 0 
  • open parentheses a to the power of p close parentheses to the power of q equals a to the power of p cross times q end exponent 
  • open parentheses a b close parentheses to the power of p equals a to the power of p b to the power of p 
  • a to the power of p cross times a to the power of q equals a to the power of p plus q end exponent 

begin mathsize 12px style table attributes columnalign right center left columnspacing 0px end attributes row cell open parentheses fraction numerator 2 p squared q cubed r over denominator 3 p to the power of negative 2 end exponent r end fraction close parentheses squared cross times open parentheses fraction numerator 6 p to the power of negative 3 end exponent q to the power of negative 4 end exponent r to the power of 6 over denominator p squared q squared end fraction close parentheses end cell equals cell open parentheses 2 over 3 p to the power of 2 minus open parentheses negative 2 close parentheses end exponent q cubed close parentheses squared cross times open parentheses 6 p to the power of negative 3 minus 2 end exponent q to the power of negative 4 minus 2 end exponent r to the power of 6 close parentheses end cell row blank equals cell open parentheses 2 over 3 p to the power of 4 q cubed close parentheses squared cross times open parentheses 6 p to the power of negative 5 end exponent q to the power of negative 6 end exponent r to the power of 6 close parentheses end cell row blank equals cell open parentheses 4 over 9 p to the power of 8 q to the power of 6 close parentheses cross times open parentheses 6 p to the power of negative 5 end exponent q to the power of negative 6 end exponent r to the power of 6 close parentheses end cell row blank equals cell open parentheses 4 over 9 cross times 6 close parentheses open parentheses p to the power of 8 plus open parentheses negative 5 close parentheses end exponent close parentheses open parentheses q to the power of 6 plus open parentheses negative 6 close parentheses end exponent close parentheses open parentheses r to the power of 6 close parentheses end cell row blank equals cell 8 over 3 p cubed q to the power of 0 r to the power of 6 end cell row blank equals cell 8 over 3 p cubed r to the power of 6 end cell end table end style 

Dengan demikian, hasil dari persamaan eksponen tersebut yaitu:

open parentheses fraction numerator 2 p squared q cubed r over denominator 3 p to the power of negative 2 end exponent r end fraction close parentheses squared cross times open parentheses fraction numerator 6 p to the power of negative 3 end exponent q to the power of negative 4 end exponent r to the power of 6 over denominator p squared q squared end fraction close parentheses equals 8 over 3 p cubed r to the power of 6 

Oleh karena itu, jawaban yang benar adalah D.

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