Pouvez vous m'aider svp merci beaucoup d'avance Développe et réduis les expressions suivantes, les étapes de calculs devront apparaître

U = -5x(x + 2) + (3x + 8)(–2 + 5x)
V = (3 + 6x)2 + (x + 7)2
W = (3x + 2)(3x – 2) + (6x – 9)2
X = (7x – 1)2 – (6x – 4)(6x + 4)
Y = 9(x – 5) – (6x – 2)(1 – 7x)​
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