7x – 2 + 3x5 – 4x2 + x4 Arrange in descending powers of x;
1 answer:
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14, 15, 20 | 2
7, 15, 10 | 2
7, 15, 5 | 3
7, 5, 5 | 5
7, 1, 1 | 7
1, 1, 1
Answer: × 3 × 5 × 7 = 420
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