Mohon bantuannya yah ka Nomor 5 aja

jawab
persamaan logaritma
⁴log x = 1/2. ²log x
²log √x = 1/2. ²log x

misal ⁴log x = ²log √x = a
1/2. ²log x = a --> ²log x = 2a 
x= (2)²ᵃ

(⁴log x)²- ²log √x  -  3/4 = 0
a² - a  - 3/4 = 0 ....kalikan 4
4a² - 4a - 3 = 0
(2a - 3)(2a + 1) = 0
a = 3/2  atau a  = - 1/2

(i) x = (2)²ᵃ
a = 3/2 --> x = (2)²⁽³/²) = 2³ = 8
a = -1/2 --> x = (2)²⁽⁻¹/²) = 2⁻¹ = 1/2

(ii) syarat pembatas x> 0 

HP (i) n (ii)  x = 8 atau x = 1/2
x1 + x2 =  8 + 1/2 =  8¹/₂