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Thomaspeguy
@Thomaspeguy
May 2019
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Bonjour , x au carré = -11 , x au carré=9 , x au carré=0 et x au carré-10x = -25 aidez moi s'il vous plait
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Verified answer
Bonjour,
x²= -11
x²+11 = 0 on peut pas
x² = 9
x²-9 =0
(x-3)(x+3) =0
x =3; -3
x² = 0
x = 0
x²-10x= -25
x²-10x+25 =0
(x-5)² = 0
x =5
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oussama16
Verified answer
Bonjour :
x²=-11
x²+11=0 impossible.
x²=9
x²-9=0
x²-3²=0 il prend la forme a²-b²
(x-3)(x+3)=0
Donc x=3 ou bien x=-3
x²=0
x=0
x²-10x=--25
x²-10x+25=0 il prend la forme de a²-2×a×b+b²
(x-5)²=0
x=5
Voilà, je te souhaite une bonne journée ☆♡
0 votes
Thanks 0
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Verified answer
Bonjour,x²= -11
x²+11 = 0 on peut pas
x² = 9
x²-9 =0
(x-3)(x+3) =0
x =3; -3
x² = 0
x = 0
x²-10x= -25
x²-10x+25 =0
(x-5)² = 0
x =5
Verified answer
Bonjour :x²=-11
x²+11=0 impossible.
x²=9
x²-9=0
x²-3²=0 il prend la forme a²-b²
(x-3)(x+3)=0
Donc x=3 ou bien x=-3
x²=0
x=0
x²-10x=--25
x²-10x+25=0 il prend la forme de a²-2×a×b+b²
(x-5)²=0
x=5
Voilà, je te souhaite une bonne journée ☆♡