Hola me pueden ayudar con estos ejercicios URGENTE CON TODOS LOS PROCEDIMIENTOS DOY 18 PUNTOS?

<img src="https://tex.z-dn.net/?f=%28x%2By%29%20%5E%7B3%7D%20%3D%20%28x%2By%29%20%5E%7B2%7D%2A%28x%2By%29%20%3D%20%20%28x%5E%7B2%7D%20%2B2xy%2By%20%5E%7B2%7D%20%29%28x%2By%29%3D" />

<img src="https://tex.z-dn.net/?f=%3Dx%5E%7B3%7D%20%2Bx%5E%7B2%7Dy%2B2%20x%5E%7B2%7D%20y%2B2xy%5E%7B2%7D%2Bxy%5E%7B2%7D%2By%5E%7B3%7D%20%20%20%20" /> = <img src="https://tex.z-dn.net/?f=x%5E%7B3%7D%2B3%20x%5E%7B2%7D%20y%2B3xy%5E%7B2%7D%20%20%2By%20%5E%7B3%7D%20" />

<img src="https://tex.z-dn.net/?f=%28a%2Bb%29%20%5E%7B3%7D%3D%20%28a%2Bb%29%20%5E%7B2%7D%2A%28a%2Bb%29%20%3D%20%28a%20%5E%7B2%7D%2B2ab%2Bb%20%5E%7B2%7D%29%28a%2Bb%29%20%3D%20%20%20%20" />

<img src="https://tex.z-dn.net/?f=%3Da%20%5E%7B3%7D%2Ba%20%5E%7B2%7Db%2B2a%20%5E%7B2%7Db%2B2ab%20%5E%7B2%7D%2Bab%20%5E%7B2%7D%2Bb%5E%7B3%7D%20%20%20%20%20%20" /> = <img src="https://tex.z-dn.net/?f=a%20%5E%7B3%7D%2B3a%20%5E%7B2%7Db%2B%203ab%20%5E%7B2%7D%2Bb%20%5E%7B3%7D%20%20%20%20" />

<img src="https://tex.z-dn.net/?f=%28m%2Bn%29%20%5E%7B4%7D%3D%20%28m%2Bn%29%20%5E%7B2%7D%2A%28m%2Bn%29%20%5E%7B2%7D%20%3D%20%28m%20%5E%7B2%7D%2B%202mn%20%2Bn%20%5E%7B2%7D%29%28m%5E%7B2%7D%2B2mn%2Bn%20%5E%7B2%7D%29%20%20%20%20%20%20%20%20" /> = <img src="https://tex.z-dn.net/?f=m%20%5E%7B4%7D%20%2B2m%20%5E%7B3%7Dn%2Bm%20%5E%7B2%7D%2Bn%20%5E%7B2%7D%2B2m%5E%7B3%7Dn%2B4m%20%5E%7B2%7Dn%20%5E%7B2%7D%2B2mn%5E%7B3%7D%2Bm%20%5E%7B2%7Dn%20%5E%7B2%7D%2B2mn%20%5E%7B3%7D%2Bn%20%5E%7B4%7D%20%20%20%20%20%20%20%20%20%20%20" /> = <img src="https://tex.z-dn.net/?f=m%20%5E%7B4%7D%20%2B4m%20%5E%7B3%7Dn%2B6m%20%5E%7B2%7Dn%20%5E%7B2%7D%2B4mn%20%5E%7B3%7D%2Bn%20%5E%7B4%7D%20" />

<img src="https://tex.z-dn.net/?f=%282x-1%29%5E%7B4%7D%3D%282x-1%29%20%5E%7B2%7D%2A%282x-1%29%20%5E%7B2%7D%20%3D" />

[img = 10]

[img = 11]

[img = 12] - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

(2a - 1)(1 + 2a) = 2a + 4a² - 1 - 2a = 4a² - 1

(1 - 3ax)(3ax + 1) = 3ax + 1 - 9a²x² - 3ax = 1 - 9a²x²

(x + y - 2) (x - y + 2) = x² - xy + 2x + xy - y² + 2y - 2x + 2y - 4 = x² - y² + 4y - 4.