Question

Semua nomor yang a kak, tolong ya

Answer 1

Verified answer

1a.
log (3x - 1) = log 5
3x - 1 = 5
3x = 6 ,x = 2

Syarat
3x - 1 > 0
x > ⅓

HP :{ 2 }

2a.

⁵log x² = ⁵log 4x + 1
⁵log x² - ⁵log 4x = 1
⁵log (x²/4x) = ⁵log 5
x/4 = 5
x = 20

Syarat
x > 0

HP : {20}

3a.

log(log (x + 3)) = log 2
log (x + 3) = 2
x + 3 = 10²
x = 100 - 3
x = 97

Syarat
x + 3 > 0 , x > -3

HP :{97}

4a.

⁴log 2^x = x
4^x = 2^x
x = 0

HP : {0}

5a.

³log²x + 9 • ³ log x - 10 = 0
(³log x + 10)(³log x - 1) = 0

³log x = -10 [TM]
atau
³log x = 1
³log x = ³log 3
x = 3

HP : {3}