9-(x+2) la puterea a2a=(7-x)(x+11)

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29 Agustus 2025 matematica 5 minute
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Clasă: Education Materie: matematica
9-(x+2) la puterea a2a=(7-x)(x+11)
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Cel mai bun răspuns
(96)
9-(x+2)²=(7-x)(x+11)
9-x²-4x-4=7x-11x-x²+77
5-x²-4x=-4x-x²+77
5=77 (Fals) ⇒ S:x∉R
Răspunsul a fost dat în data 29 Agustus 2025

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