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Reduce e = (x + 3) (x2 - 3x + 9) + (x2 + 3x + 9) (x - 3)?

Reduce e = (x + 3) (x2 - 3x + 9) + (x2 + 3x + 9) (x - 3).

8Lauralady3312

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Mejiatere7147

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