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TrCliper
@TrCliper
June 2021
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Urgent ! Une petite équation a résoudre !
Bien, voici mon problème:
nous avons donc (4m+1)x^2 (soit x au carré) - 4mx + m-3
Pour quelle valeurr de m admet-elle des solutions distinctes ?
Je souhaiterai que l'on m'explique le problème merci :)
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slyz007
Verified answer
On calcule le discriminant :
Δ=(-4m)²-4*(4m+1)*(m-3)
Δ=16m²-4(4m²-12m+m-3)
Δ=16m²-16m²+44m+12
Δ=44m+12
Pour qu'il y ait 2 solutions distinctes, il faut que Δ>0 soit:
44m+12>0 ⇔ m>-3/11
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Verified answer
On calcule le discriminant :Δ=(-4m)²-4*(4m+1)*(m-3)
Δ=16m²-4(4m²-12m+m-3)
Δ=16m²-16m²+44m+12
Δ=44m+12
Pour qu'il y ait 2 solutions distinctes, il faut que Δ>0 soit:
44m+12>0 ⇔ m>-3/11