Resolver las siguientes fracciones con operación ?

Respuesta : Explicación : <img src="https://tex.z-dn.net/?f=%5Cdfrac%7Bx-1%7D%7Bx%2B1%7D%2B%5Cdfrac%7B2x%7D%7Bx%5E2-1%7D%3D%5Cdfrac%7Bx-1%7D%7Bx%2B1%7D%2B%5Cdfrac%7B2x%7D%7B%28x%2B1%29%28x-1%29%7D%3D%5Cdfrac%7B%28x-1%29%28x-1%29%2B2x%7D%7B%28x%2B1%29%28x-1%29%7D%3D%5Cdfrac%7Bx%5E2-2x%2B1%2B2x%7D%7Bx%5E2-1%7D%5C%5C%5C%5C%5C%5C%5Cboxed%7B%5Cdfrac%7Bx-1%7D%7Bx%2B1%7D%2B%5Cdfrac%7B2x%7D%7Bx%5E2-1%7D%3D%5Cdfrac%7Bx%5E2%2B1%7D%7Bx%5E2-1%7D%20%7D" /> <img src="https://tex.z-dn.net/?f=%5Cdfrac%7B3x%7D%7B4x%2B12%7D-%5Cdfrac%7B4-x%7D%7Bx%5E2%2B6x%2B9%7D%3D%5Cdfrac%7B3x%7D%7B4%28x%2B3%29%7D%2B%5Cdfrac%7Bx-4%7D%7B%28x%2B3%29%28x%2B3%29%29%7D%3D%5Cdfrac%7B3x%28x%2B3%29%2B4%28x-4%29%7D%7B4%28x%2B3%29%28x%2B3%29%7D%5C%5C%5C%5C%5Cdfrac%7B3x%5E2%2B9x%2B4x-16%7D%7B4%28x%2B3%29%5E2%7D%5C%5C%5C%5C%5C%5C%5Cboxed%7B%5Cdfrac%7B3x%7D%7B4x%2B12%7D-%5Cdfrac%7B4-x%7D%7Bx%5E2%2B6x%2B9%7D%3D%5Cdfrac%7B3x%5E2%2B13x-16%7D%7B4%28x%2B3%29%5E2%7D%20%20%7D" /> <img src="https://tex.z-dn.net/?f=%5Cdfrac%7B2x%7D%7B25x%7D%2B%5Cdfrac%7B3x-2%7D%7B5x%5E2%2B5x%7D-%5Cdfrac%7Bx-2%7D%7Bx%5E2%2B2x%2B1%7D%3D%5Cdfrac%7B2%7D%7B25%7D%2B%5Cdfrac%7B3x-2%7D%7B5x%28x%2B1%29%7D-%5Cdfrac%7Bx-2%7D%7B%28x%2B1%29%5E2%7D%5C%5C%5C%5C%3D%5Cdfrac%7B2x%28x%2B1%29%5E2%2B%283x-2%29%285%28x%2B1%29%29-25%28x-2%29%7D%7B25x%28x%2B1%29%5E2%7D%5C%5C%5C%5C%5Cdfrac%7B2x%5E3%2B4x%5E2%2B2x%2B15x%5E2%2B5x-10-25x%2B50%7D%7B25x%28x%2B1%29%5E2%7D%5C%5C%5C%5C%5C%5C%5Cboxed%7B%5Cdfrac%7B2x%5E3%2B19x%5E2-18x%2B40%7D%7B25x%28x%2B1%29%5E2%7D%20%20%7D" />.