Me pueden ayudar x fas lo de la foto?

<img src="https://tex.z-dn.net/?f=%5Cfrac%7Bx-3%7D%7Bx-4%7D-%5Cfrac%7Bx-2%7D%7Bx-3%7D%3D%5Cfrac%7Bx%2B2%7D%7Bx%2B1%7D-%5Cfrac%7Bx%2B3%7D%7Bx%2B2%7D" />

<img src="https://tex.z-dn.net/?f=%5Cmathrm%7BEncontrar%5C%3Ael%5C%3Aminimo%5C%3Acomun%5C%3Amultiplo%5C%3Ade%5C%3A%7Dx-4%2C%5C%3Ax-3%2C%5C%3Ax%2B1%2C%5C%3Ax%2B2%3A%5Cquad%20%5Cleft%28x-4%5Cright%29%5Cleft%28x-3%5Cright%29%5Cleft%28x%2B1%5Cright%29%5Cleft%28x%2B2%5Cright%29" />

<img src="https://tex.z-dn.net/?f=%5Cmathrm%7BMultiplicar%5C%3Apor%5C%3Ael%5C%3Aminimo%5C%3Acomun%5C%3Amultiplo%3D%7D%5Cleft%28x-4%5Cright%29%5Cleft%28x-3%5Cright%29%5Cleft%28x%2B1%5Cright%29%5Cleft%28x%2B2%5Cright%29" />

<img src="https://tex.z-dn.net/?f=%5Cfrac%7Bx-3%7D%7Bx-4%7D-%5Cfrac%7Bx-2%7D%7Bx-3%7D%3D%5Cfrac%7Bx%2B2%7D%7Bx%2B1%7D-%5Cfrac%7Bx%2B3%7D%7Bx%2B2%7D%5C%3A%2F%2F%5Cleft%28x-4%5Cright%29%5Cleft%28x-3%5Cright%29%5Cleft%28x%2B1%5Cright%29%5Cleft%28x%2B2%5Cright%29" />

<img src="https://tex.z-dn.net/?f=%28x-3%29%5E%7B2%7D%20%28x%2B1%29%28x%2B2%29-%28x-2%29%28x-4%29%28x%2B1%29%28x%2B2%29%3D%28x-4%29%28x-3%29%28x%2B2%29%5E2-%28x%2B3%29%28x-4%29%28x-3%29%28x%2B1%29" />

<img src="https://tex.z-dn.net/?f=%5Cmathrm%7BAplicar%5C%3Ala%5C%3Asiguiente%5C%3Aregla%5C%3Ade%5C%3Aproductos%5C%3Anotables%7D%3A%5Cquad%20%5Cleft%28a-b%5Cright%29%5E2%3Da%5E2-2ab%2Bb%5E2" />

<img src="https://tex.z-dn.net/?f=x%5E2%2B3x%2B2%3Dx%5E2-7x%2B12" />

<img src="https://tex.z-dn.net/?f=%5Cmathrm%7BRestar%5C%3A%7D2%5Cmathrm%7B%5C%3Ade%5C%3Aambos%5C%3Alados%7D" />

<img src="https://tex.z-dn.net/?f=x%5E2%2B3x%2B2-2%3Dx%5E2-7x%2B12-2" />

<img src="https://tex.z-dn.net/?f=x%5E2%2B3x%3Dx%5E2-7x%2B10" />

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[img = 13].