Bonjour je m'excuse mais le devoirs n'est pas fini il me faut encore: •(x-2)²= •(1-3x)²= •(2x-1)²= •(3-5x)²= •(4x-3)²= •4-3x)²= •(x+2)(x-2) •(x+3)(x-3) •(3x-1)(

•(x-2)²
=x²-2²
=x²-4

•(1-3x)²
=1-(3x)²
=1-9x²

•(2x-1)²
=(2x)²-1
=4x²-1

•(3-5x)²
=3²-(5x)²
=9-25x²

•(4x-3)²
=(4x)²-3²
=16x²-9

•(4-3x)²
=4²-(3x)²
=16-9x²

•(x+2)(x-2)
=x²-2²
=x²-4

•(x+3)(x-3)
=x²-3²
=x²-9

•(3x-1)(3x+1)
=(3x)²-1²
=9x²-1

•(2x+1)(2x-1)
=(2x)²-1²
=4x²-1

•(5+3x)(x-3)

•(3x-2)(3x+2)
=(3x)²-2²
=9x²-4

•(3+4x)(3-4x)
=3²-(4x)²
=9-16x²

•(4x²+3)(4x²-3)
=(4x²)²-3²
=16[tex] x^{4}[/tex]-9