Question

PLEASE.....Help me find this answer to this question.

Answer 1

Answer:

I am sure my answer is right and I help your question but this is not my writing

Step-by-step explanation:

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by Google

Answer 2

Step-by-step explanation:

(x^2+x+1)+(x^2-x+1)

=2x^2+2

(2x^2+2)-(-(1/2) x^2 -(2/3)x +1)=2x^2+2+(1/2) x^2 +(2/3) x -1

=(2+1/2)x^2+2/3 x +1

= (5/2)x^2 +2/3 x +1