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Leeloo74
@Leeloo74
January 2021
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Please ☺ aidez moi svp
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no63
Salut
E(x)=(3x-1)(4x+1)-(3x-1)(6x-5)
1)(3x-1)(4x+1)-(3x-1)(6x-5)
= 12x^2+3x-4x-1-18x^2+15x+6x-5
=-6x^2+20x-6
2)factorisation par (3x-1)
(3x-1)(4x+1-6x+5)
=(3x-1)(-2x+6)
3)(3x-1)(-2x+6)
=-6x^2+20x-6
tu retrouves le résultat de la question 1
4) f(0)=-6*0^2+20*0-6
f(0)=-6
f(3)=0
f(1/3)=0
1 votes
Thanks 1
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E(x)=(3x-1)(4x+1)-(3x-1)(6x-5)
1)(3x-1)(4x+1)-(3x-1)(6x-5)
= 12x^2+3x-4x-1-18x^2+15x+6x-5
=-6x^2+20x-6
2)factorisation par (3x-1)
(3x-1)(4x+1-6x+5)
=(3x-1)(-2x+6)
3)(3x-1)(-2x+6)
=-6x^2+20x-6
tu retrouves le résultat de la question 1
4) f(0)=-6*0^2+20*0-6
f(0)=-6
f(3)=0
f(1/3)=0