Question

AJUTATIMA VA ROG,DAU COROANĂ​

Answer 1

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