jawaban no 1-3 ada yg tau ?

Persamaan Eksponen

1.
3ˣ⁻³  = 1/81
3ˣ⁻³ = 1/3⁴
3ˣ⁻³ = 3⁻⁴
x - 3 = - 4
x = - 4 + 3
x = - 1

2.
3ˣ² ⁻ ³ˣ⁻⁴  = 9ˣ⁺¹
3ˣ²⁻³ˣ⁻⁴  = (3²)ˣ⁺¹

x²  - 3x - 4 = 2(x + 1)
x² - 3x - 4 = 2x + 2
x² - 5x - 6 = 0
(x - 6)(x +1)=0
x = 6 atau x = -1

3.
8ˣ²⁻²ˣ = 1
8ˣ²⁻²ˣ = 8⁰

x² - 2x = 0
x(x -2) = 0
x = 0 atau x = 2
.