Răspuns:
Explicație pas cu pas:
a) (2/3)ˣ = 32/243 <=> (2/3)ˣ = 2⁵/3⁵ = (2/3)⁵ => x = 5
b) (3/2)ˣ = 225/100 <=> (3/2)ˣ = 15²/10² = (15/10)² = (3/2)² => x = 2
c) (1/7)ˣ = 2/98 <=> (1/7)ˣ = 2/98⁽² = 1/49 = 1/(7²) = (1/7)² => x = 2
d) (125/50)ˣ = 125/8 <=> (5³/5²·2)ˣ = 5³/2³ <=>
(5/2)ˣ = (5/2)³ => x = 3
