add 3a²-4a+1,-4a²+6a+7and 2a²-3a-2
Answers
Answered by
0
Answer:
a^2-a-6
Step-by-step explanation:
Answered by
1
Answer:
a²-a+6
Step-by-step explanation:
=3a²-4a+1-4a²+6a+7+2a²-3a-2
=3a²-4a²+2a²-4a+6a-3a+1+7-2
=a²-a+6
hope this help!!
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