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Answer:
3x³ - 3y - 3 or 3(x³ - y - 1)
Explanation:
3 - 3 + x³ + 6x³ - 3y - 3 - 4x³
group like terms
= x³ + 6x³ - 4x³ - 3y + 3 - 3 - 3
add similar terms
= 3x³ - 3y - 3 or 3(x³ - y - 1)
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