ImagineDragons0702 ImagineDragons0702
  • 30-05-2018
  • Mathematics
contestada

Solve by factoring. x² - 121 = 0

0
-11
11
11, -11

Solve by factoring. m² + 8m + 7 = 0

8,7
-7, 1
-7, -1
7, 1

Respuesta :

electronicghost
electronicghost electronicghost
  • 30-05-2018
The first one is 11 and -11 because when you square them they both get 121
The second one is -7 and -1 
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