Worksheets — Set 5

Algebra II · Sequences and series (intro)

Print and write your answers. Use diagrams to show thinking.

Warm-up

1. Factor completely: x² − 81 = ___ 2. Rewrite x² + 18x + 15 in square form: ___ 3. Interpret the structure of: 8(x + 1)² − 10

_See printable PDF for diagram._

Written practice

1. Factor completely: x² − 64 = ___ 2. Rewrite x² + 16x + 14 in square form: ___ 3. Interpret the structure of: 7(x + 1)² − 9 4. Which form reveals zeros? (A) standard (B) factored — letter: ___ 5. Complete the square for x² + 9x + ___ 6. Simplify: √(x² + 10x + 25) for x ≥ 0 = ___ 7. Factor completely: x² − 121 = ___ 8. Rewrite x² + 22x + 17 in square form: ___

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More written practice

1. Interpret the structure of: 10(x + 1)² − 12 2. Complete the square for x² + 12x + ___ 3. Simplify: √(x² + 16x + 64) for x ≥ 0 = ___ 4. Factor completely: x² − 196 = ___ 5. Rewrite x² + 28x + 20 in square form: ___ 6. Interpret the structure of: 13(x + 1)² − 15

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Patterns and rules

1. Factor completely: x² − 625 = ___ 2. Rewrite x² + 50x + 31 in square form: ___ 3. Interpret the structure of: 24(x + 1)² − 26

_See printable PDF for diagram._

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Parent tip: Look for common factors and special patterns