Question

Tlg bantu no 4 gan tentang eksponen

Answer 1

4(2^(3x-2)) + 8^x = 1
       5            20
16(2^(3x-2))+8^x = 1
         20
2^4(2^(3x-2)) + 8^x = 20
2^(3x+2) + 2^3x = 20
2^2(2^3x) + 2^3x = 20
4.2^3x + 2^3x = 20
5.2^3x = 20
2^3x = 4
2^3x = 2²
3x = 2
x = 2/3
Jawaban (D)