Вправи 301 - 400 » 331

331. Запишіть як степінь з основою 8: 1) (8^(-2) • 8)/8^(-8) = 8^(-1)/8^(-8) = 8–1–(–8)= 87; 2) (8^(-5) • 8^15)/8^10 = 8^10/8^(-10) = 810–(–10) = 820; 3) (8^(-4) • 8^12)/8^3 = 8^8/8^3 = 88–3= 85; 4) (8^(-10) • 8^4)/(8^15• 8^(-12) ) = 8^(-6)/8^3 = 8–6–3 = 8–9; 5) (8^(-8) • 8^(-2))/(8 • 8^(-5) ) = 8^(-10)/8^(-4) = 8–10–(–4) = 8–6; 6) (8^(-6) • 8^13)/(8^7 • 8^(-3) ) = 8^7/8^4 = 87–4 = 83.