24 Factoriser les expressions suivantes :
x Ab) = x2 + 2x + 1; B(x) = 4x2 + 4x + 1
C(x)=x²-x+ 1
4: D(x) = 4x2 - 12x + 9
E(x) = x2 - 49; F(x) = 16 - 4x2​