10th Grade Factoring and Solving Quadratics Worksheet — Level 2 — Answers
Answer sheet with worked solutions for the 10th Grade quadratics worksheet.
10th Grade Factoring and Solving Quadratics Worksheet — Level 2 — Answers
Factor, then use the zero product property.
1.Solve: x2 + 17x + 72 = 0
Answer: x = −9 or x = −8
- Factor: (x + 9)(x + 8) = 0
- Zero product property: x + 9 = 0 or x + 8 = 0
- x = −9 or x = −8
2.Solve: x2 + 2x − 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
3.Solve: x2 − 15x + 54 = 0
Answer: x = 6 or x = 9
- Factor: (x − 6)(x − 9) = 0
- Zero product property: x − 6 = 0 or x − 9 = 0
- x = 6 or x = 9
4.Solve: x2 + 15x + 56 = 0
Answer: x = −8 or x = −7
- Factor: (x + 8)(x + 7) = 0
- Zero product property: x + 8 = 0 or x + 7 = 0
- x = −8 or x = −7
5.Solve: x2 + x − 72 = 0
Answer: x = 8 or x = −9
- Factor: (x − 8)(x + 9) = 0
- Zero product property: x − 8 = 0 or x + 9 = 0
- x = 8 or x = −9
6.Solve: x2 − x − 12 = 0
Answer: x = 4 or x = −3
- Factor: (x − 4)(x + 3) = 0
- Zero product property: x − 4 = 0 or x + 3 = 0
- x = 4 or x = −3
7.Solve: x2 − 10x + 9 = 0
Answer: x = 9 or x = 1
- Factor: (x − 9)(x − 1) = 0
- Zero product property: x − 9 = 0 or x − 1 = 0
- x = 9 or x = 1
8.Solve: x2 − 11x + 18 = 0
Answer: x = 9 or x = 2
- Factor: (x − 9)(x − 2) = 0
- Zero product property: x − 9 = 0 or x − 2 = 0
- x = 9 or x = 2
9.Solve: x2 − 4x − 32 = 0
Answer: x = −4 or x = 8
- Factor: (x + 4)(x − 8) = 0
- Zero product property: x + 4 = 0 or x − 8 = 0
- x = −4 or x = 8
10.Solve: x2 − 7x + 12 = 0
Answer: x = 3 or x = 4
- Factor: (x − 3)(x − 4) = 0
- Zero product property: x − 3 = 0 or x − 4 = 0
- x = 3 or x = 4
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.