👤

(7⁴-7³):(7²-7)-2³×5 repedee va rogg dau coroană​

Răspuns :

Răspuns: 9

(7⁴ - 7³) : (7² - 7) - 2³ × 5 =

7³ × (7⁴⁻³ - 7³⁻³) : 7 × (7²⁻¹ - 7¹⁻¹) - 8 × 5 =

[7³ × (7¹ - 7⁰)] : [7 × (7¹ - 7⁰)] - 40 =

[7³ × (7 -1)] : [7 × (7 - 1)] - 40 =

(7³ × 6) : (7 × 6) - 40 =

(343 × 6) : 42 - 40 = 2058 : 42 =

49 - 40 = 9