clewis57
03.08.2019 •
Mathematics
Iam keeping getting wrong answer and i don’t know why?
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Ответ:
Ответ:
A.3a'2-2a+1
Step-by-step explanation:
substitute a+1 for X so
3a'2 +3-2a-2
reorder and simplify
3a'2-2a+1
Ответ:
1,2,4,6 are the correct options.