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Nadya
@Nadya
May 2019
1
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SVP de l'aide pour mon exo g rien compris.
Merci à vous
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Bonjour,
a) (2x-3)(2x+3) = 0
2x-3 =0
2x =3
x = 3/2
2x+3 =0
2x =-3
x =-3/2
b) (x-3)(x+3)
S{3;-3}
c) (4x-1-3)(4x-1+3) =
(4x-4)(4x+2)
S{1;-1/2}
d) (x-√2)(x+√2)
S{-√2;√2}
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Bonjour,a) (2x-3)(2x+3) = 0
2x-3 =0
2x =3
x = 3/2
2x+3 =0
2x =-3
x =-3/2
b) (x-3)(x+3)
S{3;-3}
c) (4x-1-3)(4x-1+3) =
(4x-4)(4x+2)
S{1;-1/2}
d) (x-√2)(x+√2)
S{-√2;√2}