Pertanyaan

Nilai x yang memenuhi persamaan ( 0 , 2 ) − 4 x + 5 3 ( 0 , 008 ) 7 − 2 x = 1 adalah ...

Nilai x yang memenuhi persamaan $\frac{3 ( 0 , 008 ) ^{7 - 2 x}}{( 0 , 2 ) ^{- 4 x + 5}} = 1$ adalah ...

-3
-2
-1
0
1

H. Nufus

Master Teacher

Mahasiswa/Alumni Universitas Negeri Surabaya

Jawaban terverifikasi

Pembahasan

$fraction numerator cube root of open parentheses 0 comma 008 close parentheses to the power of 7 minus 2 x end exponent end root over denominator open parentheses 0 comma 2 close parentheses to the power of negative 4 x plus 5 end exponent end fraction equals 1 fraction numerator cube root of open parentheses 0 comma 2 cubed close parentheses to the power of 7 minus 2 x end exponent end root over denominator open parentheses 0 comma 2 close parentheses to the power of negative 4 x plus 5 end exponent end fraction equals 1 fraction numerator left parenthesis 0 comma 2 right parenthesis to the power of 7 minus 2 x end exponent over denominator open parentheses 0 comma 2 close parentheses to the power of negative 4 x plus 5 end exponent end fraction equals 1 0 comma 2 to the power of open parentheses 7 minus 2 x close parentheses left parenthesis negative 4 x plus 5 right parenthesis end exponent equals 1 0 comma 2 to the power of 2 x plus 2 end exponent equals 0 comma 2 to the power of 0 2 x plus 2 equals 0 2 x equals negative 2 x equals negative 1$