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9x2 + 12x + 4

= 9x2 + 6x + 6x + 4

= 3x(3x + 2) + 2(3x + 2)

= (3x + 2)(3x + 2)

= (3x + 2)2

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14y ago
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Q: Factor 9x2 plus 12x plus 4?
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