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Chickadoo
@Chickadoo
May 2019
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Bonjour vous pouvez m'aidez s'il vous plaît...
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PetiteKyojo
Verified answer
Bonjour,
O=(x+1)(7-x)-(-1-x)
(x+1)(7-x)-(-(x+1))
(x+1)(7-x)+(x+1)
(7-x+1)(x+1)
=(8-x)(x+1)
P=x²+6x+9-(2x-3)(x+3)
x²+§x+9-(2x²+6x-3x-9)
x²+6x+9-(2x²+3x-9)
x²+6x+9-2x²-3x+9
=-x²+3x+18
H=(3x-4)(x+5)-(-6x+1)(x+5)
((3x-4)-(6x+1))(x+5)
(3x-4+6x-1)(x+5)
=(9x-5)(x+5)
E=(8x-1)²-(5x+2)(8x-1)
(8x-1)(8x-1-(5x+2))
(8x-1)(8x-1-5x-2)
(8x-1)x3(x-1)
=Je te laisse noter le résultat ! :)
1 votes
Thanks 1
Chickadoo
Merci beaucoup
PetiteKyojo
Mais de rien
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Verified answer
Bonjour,O=(x+1)(7-x)-(-1-x)
(x+1)(7-x)-(-(x+1))
(x+1)(7-x)+(x+1)
(7-x+1)(x+1)
=(8-x)(x+1)
P=x²+6x+9-(2x-3)(x+3)
x²+§x+9-(2x²+6x-3x-9)
x²+6x+9-(2x²+3x-9)
x²+6x+9-2x²-3x+9
=-x²+3x+18
H=(3x-4)(x+5)-(-6x+1)(x+5)
((3x-4)-(6x+1))(x+5)
(3x-4+6x-1)(x+5)
=(9x-5)(x+5)
E=(8x-1)²-(5x+2)(8x-1)
(8x-1)(8x-1-(5x+2))
(8x-1)(8x-1-5x-2)
(8x-1)x3(x-1)
=Je te laisse noter le résultat ! :)