11th Grade Factoring and Solving Quadratics Worksheet — Level 2 — Answers
Answer sheet with worked solutions for the 11th Grade quadratics worksheet.
11th Grade Factoring and Solving Quadratics Worksheet — Level 2 — Answers
Factor, then use the zero product property.
1.Solve: x2 − 7x + 10 = 0
Answer: x = 5 or x = 2
- Factor: (x − 5)(x − 2) = 0
- Zero product property: x − 5 = 0 or x − 2 = 0
- x = 5 or x = 2
2.Solve: x2 − 2x − 24 = 0
Answer: x = 6 or x = −4
- Factor: (x − 6)(x + 4) = 0
- Zero product property: x − 6 = 0 or x + 4 = 0
- x = 6 or x = −4
3.Solve: x2 + 6x − 16 = 0
Answer: x = −8 or x = 2
- Factor: (x + 8)(x − 2) = 0
- Zero product property: x + 8 = 0 or x − 2 = 0
- x = −8 or x = 2
4.Solve: x2 − 7x − 18 = 0
Answer: x = −2 or x = 9
- Factor: (x + 2)(x − 9) = 0
- Zero product property: x + 2 = 0 or x − 9 = 0
- x = −2 or x = 9
5.Solve: x2 + 11x + 28 = 0
Answer: x = −7 or x = −4
- Factor: (x + 7)(x + 4) = 0
- Zero product property: x + 7 = 0 or x + 4 = 0
- x = −7 or x = −4
6.Solve: x2 − 4x + 3 = 0
Answer: x = 1 or x = 3
- Factor: (x − 1)(x − 3) = 0
- Zero product property: x − 1 = 0 or x − 3 = 0
- x = 1 or x = 3
7.Solve: x2 + 2x − 15 = 0
Answer: x = −5 or x = 3
- Factor: (x + 5)(x − 3) = 0
- Zero product property: x + 5 = 0 or x − 3 = 0
- x = −5 or x = 3
8.Solve: x2 + 15x + 54 = 0
Answer: x = −9 or x = −6
- Factor: (x + 9)(x + 6) = 0
- Zero product property: x + 9 = 0 or x + 6 = 0
- x = −9 or x = −6
9.Solve: x2 − 16x + 64 = 0
Answer: x = 8 or x = 8
- Factor: (x − 8)(x − 8) = 0
- Zero product property: x − 8 = 0 or x − 8 = 0
- x = 8 or x = 8
10.Solve: x2 − 2x − 48 = 0
Answer: x = −6 or x = 8
- Factor: (x + 6)(x − 8) = 0
- Zero product property: x + 6 = 0 or x − 8 = 0
- x = −6 or x = 8
Marking tips
- Give credit for correct method even when the final answer slips — the working shows where the thinking went right.
- For open-ended tasks, use the success criteria as a checklist rather than looking for one "right" answer.
- Celebrate what went well first, then pick one thing to work on next.