Lesson 2: Addition and Subtraction of Polynomials Answers

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Find each sum.(3n2 – 5n + 6) + (–8n2 – 3n – 2) =

–11n2 – 8n – 4

–11n2 – 2n + 4

–5n2 – 8n + 4

–5n2 – 2n – 4

(0.4k3 – 2.5k) – (2.4k3 + 3k2 – 1.2k) =

–2.8k3 – 3k2 – 3.7k

–2.8k3 + 3k2 – 1.3k

–2k3 – 3k2 – 1.3k

–2k3 + 3k2 – 3.7k

What is the perimeter of the framed picture in terms of x? ( x + ) inches

Answers:

Part 1:8

Part 2:36

Which polynomial represents the difference in the heights of the baseballs t seconds after they are thrown?10t + 210t + 1050t + 250t + 10

10t + 2

10t + 10

50t + 2

50t + 10

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