Question

Violet has a TV, a dishwasher and a refrigerator in the back of her truck. The weight of the TV is represented by 2x2 + 4x and the weight of the dishwasher is x2 + 3. What polynomial represents the refrigerator if their total weight is 5x2 + 3x + 9?

Answer 1

5x^2 + 3x + 9 - (2x^2 + 4x + x^2 + 3) = 
5x^2 + 3x + 9 - (3x^2 + 4x + 3) = 
5x^2 + 3x + 9 - 3x^2 - 4x - 3 =
2x^2 - x + 6 <===