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manon110
@manon110
June 2021
2
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svp ses urgent pour demain matin svppppppppppppppppppppppppppppppp
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yacoub
C'est pas à cette heure qu'on fait ses devoirs ,
Je te solutionnes deux le reste essaie de les faire toutes seules , c'est le méme principe
3x-5-2x-7-4x-5
A=-5x-17
B=-4x+7-3+2x+5x-8
B=3X-4
0 votes
Thanks 2
manon110
merci
manon110
je lais fait quand je veut klebar
methila
ex1
A=
3x - 5-( 2X + 7 ) +(- 4X-5)
= 3x - 5- 2X - 7 - 4X - 5
= 3x - 2X - 4X - 5 -7 - 5
= 2x - 17
B = - ( 4x -7) -( 3- 2x) +(5x -8)
=
- 4x +7 - 3+ 2x +5x -8
=
- 4x + 2x +5x +7 -3 -8
= 3x -4
Ex3
1) 4x² -5x +7
= 4* (-3) -5* ( -3) +7
=4* (-9) - 5* (-3)+7
=-36 - (-15) + 7
= -36 + 15 +7
= -36+22
= -14
2) 4x² -5 x + 7
= (4* 2/3) - ( 5* 2/3) +7
= 8/3 - 10/3 +7
= -2 +7
= 5
1 votes
Thanks 1
manon110
et le reste
methila
j'essaye
manon110
ok merci
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manon110
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qui peut medez a faire mes devoir de mathe svp il faut que je calcule 2 puissance 6 2 puissance 4 2 puissance 8
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Lista de comentários
Je te solutionnes deux le reste essaie de les faire toutes seules , c'est le méme principe
3x-5-2x-7-4x-5
A=-5x-17
B=-4x+7-3+2x+5x-8
B=3X-4
A= 3x - 5-( 2X + 7 ) +(- 4X-5)
= 3x - 5- 2X - 7 - 4X - 5
= 3x - 2X - 4X - 5 -7 - 5
= 2x - 17
B = - ( 4x -7) -( 3- 2x) +(5x -8)
= - 4x +7 - 3+ 2x +5x -8
= - 4x + 2x +5x +7 -3 -8
= 3x -4
Ex3
1) 4x² -5x +7
= 4* (-3) -5* ( -3) +7
=4* (-9) - 5* (-3)+7
=-36 - (-15) + 7
= -36 + 15 +7
= -36+22
= -14
2) 4x² -5 x + 7
= (4* 2/3) - ( 5* 2/3) +7
= 8/3 - 10/3 +7
= -2 +7
= 5