Find the factors.
3x2 + 3x – 1260y2
3x2 + 3xy – 1260y2
⟹ 3x2 – 60xy + 63xy – 1260 y2
⟹ 3x(x – 20y) – 63y(x – 60y)
⟹ (3x – 63y) (x – 20y)
So (3x – 63y) and (x – 20y) are the factors of the given polynomial.
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