Factoring: GCF and Special Products Worksheets

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Algebra 1CCSS HSA.SSE.A.2Answer key includedPDF · Print

Easy: Greatest common factor

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Worksheet variations

Always take out the greatest common factor first. Then look for a pattern: a² − b² = (a + b)(a − b), and a² ± 2ab + b² = (a ± b)².

Factor completely.

Taking out a common factor that isn't the greatest, so a number is left in common inside.
Trying to factor a sum of squares such as x² + 9, which doesn't factor over the integers.
Missing the common factor first: 2x² − 18 = 2(x + 3)(x − 3).

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