nilai x yg memenuhi persamaan 4log x - 3 x 2(pangkt 1 + log x) + 8 : 0 adalah.... a. 1 atau 2 b. 2 atau 4. c. 2 atau 8. d. 1 atau 10. e. 10 atau 100

^ tanda pangkat
4^log x - 3 × 2^(1 + log x) + 8 = 0
(2^log x)² - 3×2¹×2^log x + 8 = 0
(2^log x)² - 6(2^log x) + 8 = 0
misalkan 2^log x = p
p² - 6p + 8 = 0
(p - 4)(p - 2) = 0
p - 4 = 0
p = 4
2^log x = 4
2^log x = 2²
log x = 2
x = 10² = 100
p - 2 = 0
p = 2
2^log x = 2¹
log x = 1
x = 10¹ = 10
x = 100 atau x = 10