как-то так..............................................
9- 2 ²/₁₅ * 3 ¹/₈=9 - ³²/₁₅ * ²⁵/₈=9 - ⁴/₃ * ⁵/₁=9 - ²⁰/₃ = ²⁷/₃ - ²⁰/₃=⁷/₃ = 2 ¹/₃
3* ¹/₂ - 2 ¹/₂ : 1,25=³/₂ - ⁵/₂ : ⁵/₄=³/₂ - ⁵/₂ * ⁴/₅ = ³/₂ - 2 = ³/₂ - ⁴/₂ = - ¹/₂
x^2+px+34=0, x=2, по теор Виета 2*x2=34, x2=34/2=17, x+x2=-p, 2+17=19,
-p=19, p=-19