Tentang persamaan eksponensial. minta tolong yg bisa yaa
Jawab:
Penjelasan dengan langkah-langkah:
(8)^2x+3 = 2^x-1
(2^3)^2x+3 = 2^x-1
2^(6x+9) = 2^x-1
6x +9 = x -1
6x – x = -1 – 9
5x = -10
x = -2
2x^2 = 16^(5x-9)
2x^2 = 2^4(5x-9)
X^2 = 4(5x-9)
X^2 = 20x – 36
x^2 -20x + 36 = 0
(x-18)(x-2)= 0
x = 18 atau x = 2
2^x+4 = (2^8)^((x-3)/2))
= x + 4 = 8 ((x-3)/2)
= x+4 = 4x – 12
= x – 4x = -12 -4
= -3x = – 16
x = 16/3