sulemmaa
20.09.2020 •
Mathematics
326 rounded to the nearest 100
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Ответ:
Ответ:
B: n^2+6n+1
Step-by-step explanation:
A=n
B=2n+6
C=n^2-1
AB-C
n(2n+6)-n^2-1
2n^2+6n-n^2+1
n^2+6n+1