1. Unit 5: Problems and Answers
By Akash Kar

2. 4-2
4-5
4-6
4-8
4-9
Question
Answer

3. 4-2: Adding and Subtracting Polynomials
Combine Like Terms!

4. Answer
Subtraction is basically the same thing, except you “add the opposite”

5. 4-5: Multiplying Polynomials by Monomials
Distribute then Solve!

6. Answer

7. 4-6: Multiplying Polynomials

8. Answer

9. 4-8: Rate-Time-Distance Problems
Two truck drivers started at the same time from towns 396 km apart and drove toward each other. One driver drove twice as fast as the other driver. If they met in 3 hours, find the speed of the slower driver.

10. Answer
Rate x
Time =
Distance
Driver 1 x 3 3x
Driver 2 2x 6x
44 km/hr

11. 4-9: Area Problems
A house has two rooms of equal area. One room is square and the other is 6 ft narrower and 9 ft longer than the square room. Find the area of each room.

12. Answer
18ft x 18ft; 12 ft x 27 ft