Tentukan himpunan 2^x-1 < 512^x+1

Bab Eksponensial
Matematika SMP Kelas IX

^ = pangkat

2^(x – 1) < 512^(x + 1)
2^(x – 1) < (2⁹)^(x + 1)
x – 1 < 9 (x + 1)
x – 1 < 9x + 9
x – 9x < 9 + 1
-8x < 10
x > 10/-8
x > -5/4