Question

Tolong Bantu dijawab dengan caranya... terima kasih

Answer 1

1000^x² - 3x - 4 = 10^x² - 2x - 3
karena 1000 = 10³
(10^3)^x² - 3x - 4 = 10^x² - 2x - 3
10^3x² - 9x - 12 = 10^x² - 2x - 3
3x² - 9x - 12 = x² - 2x - 3
2x² - 7x - 9 = 0
(2x - 9)(x + 1)
2x = 9
x = 9/2
x + 1 = 0
x = -1
Jadi, x = 4,5 atau -1

Answer 2