Answer:
11,18,25
Step-by-step explanation:
add 7
▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄
3x²(4x³ - 2x² + 7x - 4)
12x⁵ - 6x⁴ + 21x³ - 12x²
The estimate is 217.5.