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mia77
@mia77
May 2022
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bonsoir pourriez vous m'aider svp merci d avance
réduire les expressions suivantes A=2x3x + 3xx4x + 2x3 +2 - 2x - 4xxx B=-4x5x + (-3x)(4x)-(-2)*3-(4x)*(-x) - 2x2 - 2x
2. Réduire les expressions suivantes après avoir supprimé les parenthèses :
F = (4 + 3x - 2or) + (4x - x) - (x2-x)
G=-4x + x -(6 + 5x) + 3x - (10 - 8r) + 2x
3. Développer puis réduire :
I=6(x + 2) + 5(3 + x)
J= 8(x2 + x) - 4(x2 - 1) +2(x-7)
K=2(x - 1)-3(2-x)+4(1-x) + 3x
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gsmhostin543
[tex]2 \times 3x + 3x \times 4x + 2 \times 3 + 2 - 2x - 4x \times x \ \\ 6x + 12x {}^{2} + 6 + 2 - 2x - 4x {}^{2} \\ 12x { - 4x {}^{2} } + 6x - 2x + 8 \\ 8 {}^{2} + 4x + 8[/tex]
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izygaya22
Réponse:Pour la 1ère question g pas très bien compris 2. F = 4 + 3x - 2 + 4x - x -2x + x = 4 - 2 + 3x +4x - x - 2x + x = 2 + 7xG = 4x + x - (6+5x) + 3x - (10 - 8x) + 2x = 4x + x - 6 - 5x + 3x - 10 + 8x + 2x = 4x + x - 5x + 3x + 8x +2x - 6 - 10 = 13x - 163.I = 6(x + 2) + 5(3 + x) = 6x + 12 + 15 + 5x = 11x + 27J= 8(x2 + x) - 4(x2 - 1) +2(x-7) = 16x + 8x - 8x + 4 +2x - 14 = 18x - 10K=2(x - 1)-3(2-x)+4(1-x) + 3x = 2x - 2 - 6 + 3x + 4 - 4x + 3x = 4x - 4
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