Question

form the sum of a ²+a+1and a²-a+1 subtract -a²-a+1​

Answer 1

hi

Step-by-step explanation:

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Answer 2

(a^2+a+1+a^2-a+1)-(-a^2-a+1)

2a^2+2+a^2+a-1

3a^2+a+1