justin17683
justin17683 justin17683
  • 23-08-2017
  • Mathematics
contestada

3b2 − = -9b2\

-6b^2
-9b^2
12b^2

Respuesta :

choixongdong
choixongdong choixongdong
  • 23-08-2017
3b2 − ? = -9b2
so
3b2 − 12b^2 = -9b2

answer

12b^2
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