les gens de ma classe ou des peersonne qui save on a eu un dm que meme le prof de maths nous a pas expliquez je suis coincé a sa factoriser developper vous pou

bonjour,

1/
(x-2)² -3(x-2)
x²-4x+4-3x+6
x²-7x+10

2/
(x-2)(x-5)
x²-5x-2x+10
x²-7x+10

3/
a)
x²-7x+10 =0² -7*0 +10 = 0 -0 +10 = 10

x²-7x+10 = V2² -7V2+10 = 2 -7V2+10 = -7V2+12

b)
(x-2)(x-5) = (2-2)(2-5) = 0(-3) =0

(x-2)(x-5) =(5-2)(5-5) =(3)(0) =0

c)
(x-2)(x-5) =0

x-2 =0                    x-5 =0
x = 2                       x = 5

x²-7x+10 = 10
x²-7x+10-10 =0
x²-7x =0
x(x-7) =0

x =0                    x-7 =0
                               x = 7