Question
Which operation shows that polynomials are a closed system under subtraction?(1 point)
Responses
(2x2+6x+1)−(3x2+3x+9)=(2x2+6x−4)−(3x2+3x+4)
(2x2+6x+1)−(3x2+3x+9)=−x2+3x−8
(2x2+6x+1)−(3x2+3x+9)=5x2+9x+10
(2x2+6x+1)−(3x2+3x+9)=2x2+6x+1−3x2−3x−9
Responses
(2x2+6x+1)−(3x2+3x+9)=(2x2+6x−4)−(3x2+3x+4)
(2x2+6x+1)−(3x2+3x+9)=−x2+3x−8
(2x2+6x+1)−(3x2+3x+9)=5x2+9x+10
(2x2+6x+1)−(3x2+3x+9)=2x2+6x+1−3x2−3x−9
Answers
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