Răspuns:
Explicație pas cu pas:
❁ Salut! ❁
a) [(3¹⁰ • 3⁵)² : 81 + 3 • (9³)⁴] : x = 3²⁵
[(3¹⁵)² : 81 + 3 • (9³)⁴] : x = 3²⁵
[3³⁰ : 81 + 3 • (9³)⁴] : x = 3²⁵
(3³⁰ : 81 + 3 • 9¹²) : x = 3²⁵
(3³⁰ : 3⁴ + 3 • 9¹²) : x = 3²⁵
(3²⁶ + 3 • 9¹²) : x = 3²⁵
[(3²⁶ + 3 • (3²)¹²] : x = 3²⁵
(3²⁶ + 3 • 3²⁴) : x = 3²⁵
(3²⁶ + 3²⁵) : x = 3²⁵
(3 + 1) × 3²⁵ : x = 3²⁵
4 × 3²⁵ : x = 3²⁵
4 × 3²⁵ = 3²⁵ • x
4 × 3²⁵ = x • 3²⁵
x = 4
b) 2²⁰⁰⁷/4¹⁰⁰⁴ = x/0,5
2²⁰⁰⁷/4¹⁰⁰⁴ = x/1/2
2²⁰⁰⁷/(2²)¹⁰⁰⁴ = x/1/2
2²⁰⁰⁷/2²⁰⁰⁸ = x/1/2
1/2 = x/1/2
1/2 • 1/2 = x
1/4 = x => x = 1/4
Succes! ☺️
