Toán Lớp 9: ∛x ²+2=3 giải pt vote 5* giúp vs
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Toán Lớp 9: ∛x ²+2=3 giải pt vote 5* giúp vs
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(=) x² + 2 = 27
(=) x² = 25
(=) x = ±5
Vậy x = ± 5