Réponse :
https://fr.numberempire.com/factoringcalculator.php
Explications étape par étape :
A = 5*(4*X^2-X+9)
B = 7*X*(5*x-12*X+16) (https://tinyurl.com/yzvaoaab)
C = -4*(X+2)*(3*X-4) (https://tinyurl.com/btyrxzaf)
D = 2*(8*x^2-28*x-16*X^2+34*X+5) (https://tinyurl.com/btyrxzaf)
