Answer:
that would 6a+4
Step-by-step explanation:
8a - 2a , 8 - 4
Answer:B
Step-by-step explanation:
Not sure but the math came out like that.
I would believe it to be 22
Ignoring the "?" in your question:

If the "?" is a squared symbol that wasn't caught:

Use the quadratic formula

to get the solutions:

as you can see, the discriminant is negative, so the equation has no solution.
Answer:
3^9 * 3^7
Step-by-step explanation:
I don't really know how to explain it lol