Question

sum of x²+x+1 and x²-x+1 substract -x²-x+1
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Answer 1

Answer:

idk

Step-by-step explanation:

2+2=4 -1=3 quick maths

Answer 2

Answer:

Sum :-

x^2 + x + 1

+ x^2 - x + 1

__________

2x^2 + 2

____________

Substraction :-

2x^2 + 2

- -x^2 - x + 1

+ +. -

___________

3x^2 + x + 1

_____________