Q: How do you factor 9a2 plus 42at plus 49t2?

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a(a^2 - 9a + 3)

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If that's 9a2, the answer is a(a2 - 9a + 3) x(5x2 + 3x - 1) -8d(d2 + 3d + 1)

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9and anumber and 2