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3 cards from this section. Quick, good the night before a test.
Factorize x² - 16.
Use the difference of squares.
Factorize x² + 10x + 25.
Look for perfect squares.
What is the GCF of 12 and 16?
Divide both by numbers.
Is (x² - 5) factorable by standard methods?
Try factoring x² + a or x² - a.
Factor 4x² - 25x + 60.
Look for pairs that sum and multiply.
Factor x⁴ - 16.
Use the difference of squares first.
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