Bonjour aider moi svp : 1/-DEVELOPPER A = 5(2 x - 7); B=-4(-3x+1); C=4-3 (x - 5); D=58-5(-2x+1); E=2 (3x+5) - 4(x + 2). F=3-(x + 2) G = (x + 2) - (4 - x) H = 7+
Question
A = 5(2 x - 7);
B=-4(-3x+1);
C=4-3 (x - 5);
D=58-5(-2x+1);
E=2 (3x+5) - 4(x + 2).
F=3-(x + 2)
G = (x + 2) - (4 - x)
H = 7+ (-2-x)
I = (4x - 5) + (-x + 2)
J = -(-x + 3) + (-2x - 7)
III-FACTORISER
Factoriser les expressions suivantes par les nombres indiqués entre parentheses
A = 15x +45 (15);
B=-6x + 24 (6);
C=4x - 8 (4); D=27 x-9
(9);
E=11 x-33 (11); F=-9x+9
(9).
Factoriser les expressions suivantes
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A= 4x2 +3 x;
C=2x+5x?;
E = 5x2 - 15x;
G=5x3-x2 + 2 x;
B = 7x2 - x;
D=4x2 + 8 x;
F=2 x2 + 8x4,
H=-4x2 - 4x2 + 8 x.
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1 Réponse
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1. Réponse MargeSimpson1
Bonsoir
Politesse !
Développer :
A = 5(2x-7)
A = 5×2x+5×(-7)
A = 10x-35
B = -4(-3x+1)
B = -4×(-3x)+(-4)×1
B = 12x-4
C = 4-31(x-5)
C = 4-[3×x+3×(-5)]
C = 4-(3x-15)
C = 4-3x+15
C = -3x+19
D = 5x-5(-2x+1)
D = 5x-[5×(-2x)+5×1]
D = 5x-(-10x+5)
D = 5x+10x-5
D = 15x-5
E = 2(3x+5)-4(x+2)
E = 2×3x+2×5-(4×x+4×2)
E = 6x+10-(4x+8)
E = 6x+10-4x-8
E = 2x+2
F = 3-(x+2)
F = 3-x-2
F = -x+1
G = (x+2)-(4-x)
G = x+2-4+x
G = 2x-2
H = 7+(-2-x)
H = 7-2-x
H = 7-2-x
| = (4x-5)+(-x+2)
I = 4x-5-x+2
I = 3x-3
J = -(-x+3)+(-2x-7)
J= x-3-2x-7
J = -x-10
Factoriser :
Pour 15 :
A = 15x + 45
A = 15×x+15×3
A = 15(x+3)
A = 15(x+3)Pour 6 :
B = 6x+24
B = 6×x+6×4
B = 6(x+4)
B = 6(x+4)Pour 4 :
C= 4x-8
C = 4×x-4×2
C = 4(x-2)
Pour 9 :
D = 27x-9
D = 9×3x-9×1
D = 9(3x-1)
Pour 11 :
E = 11x-33
E = 11×x-11×3
E = 11(x-3)
Pour 9 :
F = 9x+9
F = 9×x+9×1
F = 9(x+1)
Factoriser :
A = 4x²+3x
A = x×4x+x×3
A = x(4x+3)
B = 7x²-x
B = x×7x-x×1
B = x(7x-1)
C = 2x+5x³
C = x×2+x×5x²
C = x(5x+2)
D = 4x²+8x
D = 4x×x+4x×2
D = 4x(x+2)
E = 5x²-15
E = 5×x²-5×3
E = 5(x²-3)
F = 2x²+8x⁴
F = 2x²×1+2x²×4x²
F = 2x²(4x²+1)
G = 5x³-x²+2x
G = x×5x²-x×x+x×2
G = x(5x²-x+2)
H = 4x³-4x²+8x
H = 4x×x²-4x×x+4x×2
H = 4x(x²-x+2)
Bonne soirée.