Cortes33
Cortes33 Cortes33
  • 17-11-2015
  • Mathematics
contestada

What is the solution set of the equation:
7q^2 - 28 = 0

Respuesta :

Panoyin
Panoyin Panoyin
  • 17-11-2015
7q² - 28 = 0
     + 28 + 28
       7q² = 28
         7      7
         q² = 4
          q = ±4
          q = 4    or    q = -4

Solution Set: {±4} and {q|q = 4 or q = -4}

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