diepbui291267 diepbui291267
  • 12-08-2021
  • Mathematics
contestada

Phương trình (m + 2)x2 – 2mx + 1 = 0 là phương trình bậc hai khi:
A. m ≠ 1. B. m ≠ -2. C. m ≠ 0. D. mọi giá trị của m.

Respuesta :

Jewel172
Jewel172 Jewel172
  • 12-08-2021

B::: m ≠ -2.............

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