echil80ders
echil80ders
04-04-2020
Mathematics
contestada
factor completely: 21a+27
Respuesta :
Onoriodefelix
Onoriodefelix
04-04-2020
Answer:
3(7a + 9)
Step-by-step explanation:
21a + 27
3(7a + 9)
When you expand
3 x 7a + 3 x 9
21a + 27
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