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KoopaMeuh
@KoopaMeuh
April 2019
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Bonjour! Je dois faire ces deux calculs! merci de votre aide! :)
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bareo69
F (-4)=3*(-4) -11
=-12-11
=-23
f(8)=3*8-11
=24-11
=13
et tu fais la même cvose pour le 2)
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KoopaMeuh
tu peux me le faite Stp?
KoopaMeuh
la j'ai vraiment pás le temps!! stp :/
KoopaMeuh
merci ;)
Alpha171
3x-11=-4 <=> 3x=7
<=>x=7/3
3x-11=8 <=> 3x=19
<=> x=19/3
5x²=45 <=> x²=9
<=> x=3
5x²=-5 -> impossible car un carré ne peut etre négatif.
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Lista de comentários
=-12-11
=-23
f(8)=3*8-11
=24-11
=13
et tu fais la même cvose pour le 2)
<=>x=7/3
3x-11=8 <=> 3x=19
<=> x=19/3
5x²=45 <=> x²=9
<=> x=3
5x²=-5 -> impossible car un carré ne peut etre négatif.