Pertanyaan

Nilai x yang memenuhi persamaan ( 25 1 ) x − 2 , 5 = 5 2 − x 625 adalah....

Nilai x yang memenuhi persamaan $(\frac{1}{25})^{x - 2, 5} = \frac{625}{5 ^{2 - x}}$ adalah....

N. Rahayu

Master Teacher

Mahasiswa/Alumni Universitas Negeri Jakarta

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Pembahasan

$table attributes columnalign right center left columnspacing 0px end attributes row cell open parentheses size 12px 1 over size 12px 25 close parentheses to the power of size 12px x size 12px minus size 12px 2 size 12px comma size 12px 5 end exponent end cell size 12px equals cell square root of size 12px 625 over size 12px 5 to the power of size 12px 2 size 12px minus size 12px x end exponent end root end cell row cell size 12px 5 to the power of size 12px minus size 12px 2 size 12px left parenthesis size 12px x size 12px minus size 12px 2 size 12px comma size 12px 5 size 12px right parenthesis end exponent end cell size 12px equals cell size 12px 5 to the power of fraction numerator size 12px 4 size 12px minus size 12px 2 size 12px plus size 12px x over denominator size 12px 2 end fraction end exponent end cell row cell size 12px minus size 12px 2 size 12px x size 12px plus size 12px 5 end cell size 12px equals cell fraction numerator size 12px 2 size 12px plus size 12px x over denominator size 12px 2 end fraction end cell row cell size 12px minus size 12px 4 size 12px x size 12px plus size 12px 10 end cell size 12px equals cell size 12px 2 size 12px plus size 12px x end cell row cell size 12px minus size 12px 5 size 12px x end cell size 12px equals cell size 12px minus size 12px 8 end cell row size 12px x size 12px equals cell size 12px 8 over size 12px 5 end cell end table$

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