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2x2 - 72 would be factored into (2x - 12)(x + 6) or (2x + 12)(x - 6)

To double check, multiply each pair:

(2x - 12)(x + 6) = 2x2 + 12x - 12x - 72 = 2x2 - 72

(2x + 12)(x - 6) = 2x2 - 12x + 12 x - 72 = 2x2 - 72

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โˆ™ 2009-05-12 05:49:11
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Q: How would you factor 2x squared - 72?
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