free97 free97
  • 21-04-2020
  • Mathematics
contestada

What is the value of x, when x^2 + 5 = 21?
A
5.5 or -5.5
B
4 or -4
C
2 or -2
D
8 or -8

Respuesta :

marlainalehmann marlainalehmann
  • 21-04-2020
The answer is B. 4 or -4
Answer Link

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