tentukan himpunan log2x+log2x-10=0

Bab Logaritma
Matematika SMA Kelas X

log 2x + log 2x - 10 = 0
2 . log 2x = 10
log 2x = 10 : 2
2x = 10⁵
x = 100.000 : 2
x = 50.000

HP = { 50.000 }