Answer:Start with: 1.2x2 + 6x + 5 + 3x2 − 2x − 1.
2.Place like terms together:2x2+3x2 + 6x−2x + 5−1.
3.Which is:(2+3)x2 + (6−2)x + (5−1)
4.Add the like terms:5x2 + 4x + 4.
Step-by-step explanation: