Pertanyaan

( x − 2 y 2 x − 4 y 3 ) − 5 = ...

$(\frac{x ^{- 4} y ^{3}}{x ^{- 2} y ^{2}})^{- 5} = ...$

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H. Eka

Master Teacher

Mahasiswa/Alumni Universitas Pendidikan Indonesia

Jawaban terverifikasi

Jawaban

bentuk sederhana dari

bentuk sederhana dari $table attributes columnalign right center left columnspacing 0px end attributes row cell open parentheses fraction numerator x to the power of negative 4 end exponent y cubed over denominator x to the power of negative 2 end exponent y squared end fraction close parentheses to the power of negative 5 end exponent end cell equals cell x to the power of 10 over y to the power of 5 end cell end table$

Pembahasan

Bilangan berpangkat bulat positif dapat didefinisikan sebagai berikut. Ingat sifat bilangan berpangkat berikut. sehingga penyelesaian soal di atas, yaitu Dengan demikian, bentuk sederhana dari

Bilangan berpangkat bulat positif dapat didefinisikan sebagai berikut.

a to the power of n equals stack a cross times a cross times a cross times horizontal ellipsis cross times a with underbrace below table row blank cell space space space space space space space space end cell cell n space text faktor end text end cell end table

Ingat sifat bilangan berpangkat berikut.

a to the power of m divided by a to the power of n equals a to the power of m minus n end exponent

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

open parentheses a to the power of m close parentheses to the power of n equals a to the power of m n end exponent

a to the power of negative m end exponent equals 1 over a to the power of m comma space a not equal to 0

sehingga penyelesaian soal di atas, yaitu

$table attributes columnalign right center left columnspacing 0px end attributes row cell open parentheses fraction numerator x to the power of negative 4 end exponent y cubed over denominator x to the power of negative 2 end exponent y squared end fraction close parentheses to the power of negative 5 end exponent end cell equals cell open parentheses x to the power of negative 4 minus open parentheses negative 2 close parentheses end exponent y to the power of 3 minus 2 end exponent close parentheses to the power of negative 5 end exponent end cell row blank equals cell open parentheses x to the power of negative 2 end exponent y close parentheses to the power of negative 5 end exponent end cell row blank equals cell open parentheses x to the power of negative 2 end exponent close parentheses to the power of negative 5 end exponent open parentheses y close parentheses to the power of negative 5 end exponent end cell row blank equals cell x to the power of 10 y to the power of negative 5 end exponent end cell row blank equals cell x to the power of 10 over y to the power of 5 end cell end table$

Dengan demikian, bentuk sederhana dari $table attributes columnalign right center left columnspacing 0px end attributes row cell open parentheses fraction numerator x to the power of negative 4 end exponent y cubed over denominator x to the power of negative 2 end exponent y squared end fraction close parentheses to the power of negative 5 end exponent end cell equals cell x to the power of 10 over y to the power of 5 end cell end table$

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