Question
Which operation shows that polynomials are a closed system under addition?(1 point)
Responses
(2x2+6x+1)+(3x2+3x+9)=−x2+3x−8
(2x2+6x+1)+(3x2+3x+9)=(2x2+3x2)+(6x+3x)+(1+9)
(2x2+6x+1)+(3x2+3x+9)=5x2+9x+10
(2x2+6x+1)+(3x2+3x+9)=(2x2+3x+1)+(3x2+6x+9)
Responses
(2x2+6x+1)+(3x2+3x+9)=−x2+3x−8
(2x2+6x+1)+(3x2+3x+9)=(2x2+3x2)+(6x+3x)+(1+9)
(2x2+6x+1)+(3x2+3x+9)=5x2+9x+10
(2x2+6x+1)+(3x2+3x+9)=(2x2+3x+1)+(3x2+6x+9)
Answers
Answer
thats wrong
Answer
thats wrong
Answer
thats right
Answer
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