Bonjour
2) 2x -3 > x+1
2x-x>1+3
x=4
4) A= (2x-3)^2 - (2x-3)(x+1)
A= (4x^2 -12x+9)-(2x^2 + 2x -3x -3)
A=(4x^2 -12x+9)-(2x^2-x-3)
A=4x^2 -12x+9-2x^2+x+3
A= 2x^2 -11x +12
5)
A= (2x-3)^2 - (2x-3)(x+1)
A= (2x-3)(2x-3) - (2x-3)(x+1)
A=(2x-3) ((2x-3)-(x+1))
A=(2x-3) (2x-3-x-1)
A=(2x-3) (x-4)