Pertanyaan

J ika 2 y 8 x = 32 d an 4 x . 2 y = 32 , maka ha s i l d a r i x − y = ....

$J ika \frac{8 ^{x}}{2 ^{y}} = 32 d an 4^{x} . 2^{y} = 32, maka ha s i l d a r i x - y = ....$

5
-6
7
-1
8

Ikuti Tryout SNBT & Menangkan E-Wallet 100rb

Habis dalam

Klaim

A. Acfreelance

Master Teacher

Jawaban terverifikasi

Pembahasan

$8 to the power of x over 2 to the power of y equals 32 rightwards arrow fraction numerator begin display style open parentheses 2 cubed close parentheses to the power of x end style over denominator 2 to the power of y end fraction equals 2 to the power of 5 space space space space space space space space space space space space space space rightwards arrow 2 to the power of 3 x end exponent over 2 to the power of y equals 2 to the power of 5 space space space space space space space space space space space space space space rightwards arrow 2 to the power of 3 x minus y end exponent equals 2 to the power of 5 space space space space space space space space space space space space space space rightwards arrow 3 x minus y equals 5... space left parenthesis p e r s space 1 right parenthesis 4 to the power of x.2 to the power of y equals 32 squared rightwards arrow open parentheses 2 squared close parentheses to the power of x.2 to the power of y equals open parentheses 2 to the power of 5 close parentheses squared space space space space space space space space space space space space space space space space space space space space rightwards arrow 2 to the power of 2 x plus y end exponent equals 2 to the power of 10 space space space space space space space space space space space space space space space space space space space space rightwards arrow 2 x plus y equals 10... space left parenthesis p e r s space 2 right parenthesis E l e m i n a s i space p e r s space left parenthesis 1 right parenthesis space d a n space p e r s space left parenthesis 2 right parenthesis 3 x minus y equals 5 bottom enclose 2 x plus y equals 10 space plus end enclose space space space space space space 5 x space equals space 15 space space space space space space space space space x equals 3 S u b s t i t u s i space x equals 3 2 x plus y equals 10 2 left parenthesis 3 right parenthesis space plus y equals 10 y equals 4 S e h i n g g a space n i l a i space x minus y equals 3 minus 4 equals negative 1$