Bonjour
p(x)=x²-49-(5x+3)(x+7)
p(x)=(x-7)(x+7)-(5x+3)(x+7)
p(x)=(x+7)(x-7-5x-3)
p(x)=(x+7)(-4x-10)
p(x)=-2(x+7)(2x+5)
p(x)=(3x-2)²-(x-4)² ( la forme a²-b²=(a-b)(a+b) )
p(x)=(3x-2-x+4)(3x-2+x-4)
p(x)=(2x+2)(4x-6)
P(x)=4(x+1)(2x-3)
p(x)=x⁴-16
p(x)=(x²)²-4²
p(x)=(x²-4)(x²+4)
p(x)=(x-2)(x+2)(x²+4)
p(x)=(x-1)(2x+3)+(2-2x)(3-x)
p(x)=(x-1)(2x+3)-2(x-1)(3-x)
p(x)=(x-1)(2x+3-6+2x)
p(x)=(x-1)(4x-3)
p(x)=81x²-64-(9x+8)(2x+7)
p(x)=(9x-8)(9x+8)-(9x+8)(2x+7)
p(x)=(9x+8)(9x-8-2x-7)
p(x)=(9x+8)(7x-15)
p(x)=(5x+2)²+(x+7)(5x+2)-25x²+4
p(x)=(5x+2)²+(x+7)(5x+2)+(2-5x)(2+5x)
p(x)=(5x+2)²+(x+7)(5x+2)-(5x+2)(2-5x)
p(x)=(5x+2)(5x+2x+7-2+5x)
p(x)=(5x+2)(12x+5)
si tu as des question s n’hésites pas !
