11x⁴ + 21x³ - 43 + 60 - 19x³ - 7x⁴(
(11x⁴ - 7x⁴) + (21x³ - 19x³) + (60 - 43)
4x⁴ + 2x³ + 17
2x³(2x + 1) + 17
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11x⁴ + 21x³ - 43 + 60 - 19x³ - 7x⁴(
(11x⁴ - 7x⁴) + (21x³ - 19x³) + (60 - 43)
4x⁴ + 2x³ + 17
2x³(2x + 1) + 17