РОЗДІЛ 2. Раціональні вирази - Вправи 50 - 200 » 150 (1-5)

150. Спростіть вираз: 1) 2^(\2)/5x + 3/10x = (4+3)/10x = 7/10x; 2) 5/3a + 5/6a = (10+5)/6a = 15/6a = 5/2a; 3) 5^(\3)/12c + 7^(\4)/9c = (15+25)/36c = 43/36c; 4) 〖3x〗^(\3)/(x+2) + 2x/(3(x+2)) = (9x+2x)/(3(x+2)) = 11x/(3(x+2)); 5) y/(5(y+1)) + 〖2y〗^(\5)/(y+1) = (y+10y)/(5(y+1)) = 11y/(5(y+1));