Question

(5x2 - 9 + 6x4 + 6x + 7x3) + (x2 - 1)​

Answer 1

Answer:

hope it helps you good morning

Step-by-step explanation:

6x4+7x3+5x2+2x-10

Answer 2

Answer:

see it and understand how it's solved and then next solve it your own