9m² - 3n² m - 4n 2m + n 5n² - 3m²( ----------------- - --------------) : (---------------- - ------------------) = 4mn 5n 3m 16m² 5 * (9m² - 3n²) - 4m * (m - 4n) 16m * (2m + n) - 3* (5n² - 3m²)= ------------------------------------------ : -------------------------------------------- = 4 * 5 * m * n 3 * 16m² 45m² - 15n² - 4m² + 16mn 48m²= ---------------------------------------- * ------------------------------------------- = 20mn 32m² + 16mn - 15n² + 9m² (41m² + 16mn - 15n²) * 48m² 4m * 12m 12m= ------------------------------------------- = ----------------- = -------------- (41m² + 16mn - 15n²) * 20mn 4m * 5n 5n--------------------------------------------------------------------------------------------------- p 2 1 10 - p²(------------ + ----------- + ----------) : ( p - 2 + -------------) = p² - 4 2 - p 2 + p 2 + p p 2 1 p * (p + 2) - 2* (p + 2) + 10 - p²=(------------------- - --------- + ----------) : (------------------------------------------) = (p + 2)(p - 2) p - 2 p + 2 p + 2 p - 2 * (p + 2) + 1* (p - 2) p² + 2p - 2p - 4 + 10 - p²= ------------------------------------- : ------------------------------------- = (p + 2)(p - 2) p + 2 p - 2p - 4 + p - 2 p + 2 -6 * (p + 2) -1 1= -------------------------- * ----------- = ------------------------ = --------- = ----------- (p + 2)(p - 2) 6 6 * (p + 2)(p - 2) p - 2 2 - p----------------------------------------------------------------------------------------------- 4b + a 6b a² - 2ab + 4b²(------------ + -------------) * (----------------------- + 1) = 2b a - 4b 4b² - a² 4b + a 6b 4b² - 2ab + a² + 4b² - a²= ( ------------ - -------------) * ------------------------------------ = 2b 4b - a 4b² - a² (4b + a)(4b - a) - 2b * 6b 8b² - 2ab= ------------------------------------ * ----------------- = 2b * (4b - a) 4b² - a² 16b² - a² - 12b² 2b * (4b - a) = ------------------------ * -------------------- = 2b * (4b - a) 4b² - a² 4b² - a²= --------------- = 1 4b² - a²------------------------------------------------------------------------------------------------- m⁴ + 1 m² + 1 m³( ------------- + 2) : -------------- - ------------- = m² m m² - 1 m⁴ + 1 + 2m² m m³= -------------------- * -------------- - ------------- = m² m² + 1 m² - 1 (m² + 1)² * 1 m³ m² + 1 m³= --------------------- - ------------- = ------------- - ------------- = m * (m² + 1) m² - 1 m m² - 1 (m² + 1)(m² - 1) - m * m³ m⁴ - 1 - m⁴ -1 1= ------------------------------------ = ------------------ = ------------ = ------------ m * (m² - 1) m³ - m m³ - m m - m³