What is the sum of 3x3 + 7x2 - 7 and 5x2+8x-9?
1.3x3 + 12x2 + 8x - 16
2.8x3 + 7x2 - 16
3.3x3 + 5x2 + 8x - 2
4.none
Answer:1
Posted Date:-2021-09-20 02:45:14