Special Factoring Patterns - Worksheet 7 - 9th Grade

Medium

Factor difference of squares and perfect square trinomials (Medium)

22 problems · 20-25 minutes · Skills: polynomials, factoring, patterns

About This Worksheet

This medium-level worksheet contains 22 problems designed for 9th Grade students practicing special factoring patterns. Medium worksheets introduce larger numbers and varied question formats to deepen understanding and build fluency.

Special factoring patterns are shortcuts derived from algebraic identities. Recognizing them — rather than treating every polynomial as a general case — dramatically speeds up problem solving and reveals the elegant structure underlying algebraic expressions.

  • Factor a difference of squares: a² − b² = (a + b)(a − b)
  • Recognize and factor perfect square trinomials: a² ± 2ab + b² = (a ± b)²
  • Apply special patterns to simplify and solve polynomial equations quickly
  • Factor sum and difference of cubes using the standard identities
  • Combine special patterns with GCF factoring to factor multi-step expressions completely

How to Solve: Worked Example

Example Problem: Solve the first problem on the worksheet.
Solution Steps:
  1. Read the problem carefully.
  2. Identify what is being asked.
  3. Use what you know to find the answer.
  4. Check your work.
Answer: See the answer key below
Tip: Take your time and read each problem carefully before answering!
1
1 + 3 =
2
7 + 5 =
3
9 + 3 =
4
5 + 2 =
5
2 + 5 =
6
5 + 3 =
7
4 + 6 =
8
1 + 9 =
9
5 + 1 =
10
7 + 9 =
11
5 + 1 =
12
3 + 6 =
13
6 + 7 =
14
6 + 3 =
15
3 + 1 =
16
5 + 5 =
17
6 + 5 =
18
6 + 1 =
19
3 + 5 =
20
3 + 8 =
21
1 + 3 =
22
9 + 10 =

Answer Key

1. 42. 123. 124. 75. 76. 87. 108. 109. 610. 1611. 612. 913. 1314. 915. 416. 1017. 1118. 719. 820. 1121. 422. 19

Frequently Asked Questions

How do I download this special factoring patterns - worksheet 7 worksheet?

Click the "Download PDF / Print" button at the top of the worksheet. You can save it as a PDF or print it directly. The answer key will be on a separate page.

How do I find worksheets at different difficulty levels?

Each subtopic has 10 worksheets: Worksheets 1-3 are Easy, 4-7 are Medium, and 8-10 are Hard. Start with Easy worksheets to build confidence, then progress to harder ones.

What skills does this polynomials worksheet cover?

This worksheet focuses on polynomials, factoring, patterns. It is designed for 9th Grade students and provides structured practice through varied problem types with a worked example to guide students before they begin.

Can I use this worksheet in my classroom?

Yes. All worksheets on K12Worksheets are free for classroom use. You can print copies for your entire class. With 10 worksheets per subtopic at three difficulty levels, you have plenty of options for differentiated instruction and individualized practice.

How many problems are on this worksheet?

This worksheet contains 22 problems. It typically takes 20-25 minutes to complete. An answer key with all solutions is included so parents and teachers can check work quickly.