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Factor the expression 9x^2-4
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Factor the expression 9x^2-4

User Steve Keenan
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9x^2 - 4 \\ \\ (3x)^2 - 2^2 \\ \\ (3x+2)(3x-2) \\ \\ Answer: \fbox {(3x+2)(3x-2)}
User Ak Sacha
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