12/(х+1)*(х+5)+15/(х+2)*(х+4)=2

12/(х + 1) * (х + 5) + 15/(х + 2) * (х + 4) = 2;12/(х + 1) * (х + 5) * (x + 1) * (x + 2) + 15/(х + 2) * (х + 4) * (x + 2) * (x + 1) = 2 * (x + 1) * (x + 2);12 * (x + 5) * (x + 2) + 15 * (x + 4) * (x + 1) = 2 * (x + 1) * (x + 2);12 * (x ^ 2 + 7 * x + 10) + 15 * (x ^ 2 + 5 * x + 4) = 2 * (x ^ 2 + 3 * x + 2);12 * x ^ 2 + 84 * x + 120 + 15 * x ^ 2 + 75 * x + 60 = 2 * x ^ 2 + 6 * x + 4;- 3 * x ^ 2 + 159 * x + 180 = 2 * x ^ 2 + 6 * x + 4;- 5 * x ^ 2 + 153 * x + 176 = 0;5 * x ^ 2 - 153 * x - 176 = 0;x1 = (153 - √26929)/(2 · 5) ≈ - 1.1101;x2 = (153 + √26929)/(2 · 5) ≈ 31.710.