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Nilai xyang tepat untuk persamaan 2 15 x ​ ÷ 8 x ​ − 2 = 64 × 4 3 3 ​ adalah......

Nilai x yang tepat untuk persamaan  adalah......

  1. 3 over 4  

  2. 1 fourth  

  3. 3 over 2  

  4. 1 half  

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N. Ayu

Master Teacher

Mahasiswa/Alumni Universitas Negeri Padang

Jawaban terverifikasi

Pembahasan

Ingat kembali aturan perpangkatan :

Ingat kembali aturan perpangkatan :

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 a to the power of m cross times a to the power of n equals a to the power of m plus n end exponent 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  2 to the power of 15 square root of x end exponent divided by 8 to the power of square root of x minus 2 end exponent equals 64 space cross times space 4 to the power of 3 square root of 3 end exponent 2 to the power of 15 square root of x end exponent divided by 2 to the power of 3 open parentheses square root of x minus 2 close parentheses end exponent equals 2 to the power of 6 space cross times space 2 to the power of 2 left parenthesis 3 square root of 3 right parenthesis end exponent 2 to the power of 15 square root of x minus 3 open parentheses square root of x minus 2 close parentheses end exponent equals 2 to the power of 6 plus 2 left parenthesis 3 square root of 3 right parenthesis end exponent 15 square root of x minus 3 open parentheses square root of x minus 2 close parentheses equals 6 plus 2 left parenthesis 3 square root of 3 right parenthesis 15 square root of x minus 3 square root of x plus 6 equals 6 plus 6 square root of 3 12 square root of x equals 6 square root of 3 6 space cross times space 2 square root of x equals 6 square root of 3 6 square root of 4 x end root equals 6 square root of 3 square root of 4 x end root equals square root of 3 4 x equals 3 x equals 3 over 4 

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Jika maka nilai yang tepat untuk 1 + 2 1 ​ x ​ adalah.....

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