Aidez moi pour l'ex 111 svp ! Merci d'avance

[tex]l=5x+17-(29x-4) \\\\ l=5x+17-29x+4 \\\\ \boxed{l=-24x+21 \to 3(7-8x)} \\\\\\ j=(59x-2)-(4-13x) \\\\ j=59x-2-4+13x \\\\ \boxed{j=72x-6 \to 6(12x-1)}[/tex]

[tex]k=3x-34x+5 \\\\ \boxed{k=-31x+5} \\\\\\ L=27x^2-3x+x^2 \\\\ \boxed{L=28x^2-3x\to x(28x-3)}[/tex]