justin17683
justin17683
23-08-2017
Mathematics
contestada
3b2 − = -9b2\
-6b^2
-9b^2
12b^2
Respuesta :
choixongdong
choixongdong
23-08-2017
3b2 − ? = -9b2
so
3b2 − 12b^2 = -9b2
answer
12b^2
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