# Summary discussion mat 1033 week 3

To Receive Discussion Board credit this week:

• Complete all 10 summary questions showing your work step by step towards the answer. No work, no credit!
• Work shown must be neat and ordered – Use the math editor within the thread.
• Summary questions posted on or before Friday at 2 pm will have corrections made prior to test due date.
1. Subtract the following polynomials: (4x² – 9x – 7) – (3x² – 5x – 6)
2. Multiply and combine like terms:  (x – 10)(x + 9)
3. Factor completely:  10r3s2 + 25r2s2 – 15r2s3
4. Factor the trinomial:  3×2 + 7x + 2
5. Factor completely:  xy – 3x + 4y – 12
6. Solve the equation by factoring:  x2 – 2x – 3 = 0
7. Solve:  (x + 10)(x – 3) = 0
8. Solve:  x2 – 7x + 12 = 0
9. Solve:  3×2 – x – 2 = 0
10. Solve:  3×2 – x – 5 = 0

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