Which operation shows that polynomials are a closed system under addition?
Responses
(5x2+2x+1)+(−2x2+6x+4)=−3x2+8x−3
(5x2+2x+1)+(−2x2+6x+4)=(5x2−2x2)+(2x+6x)+(1+4)
(5x2+2x+1)+(−2x2+6x+4)=3x2+8x+5
(5x2+2x+1)+(−2x2+6x+4)=(−2x2+2x+4)+(5x2+6x+1)
The correct operation that shows that polynomials are a closed system under addition is:
(5x2+2x+1)+(−2x2+6x+4)=(5x2−2x2)+(2x+6x)+(1+4)