Answer:
If the four number sentences at the bottom are the choices for your answer the correct one would be choice A or 1.
I hope this is what you meant if not I'll try to take my answer down and try to answer it again correctly!
Answer:
2*x^3 + x^2 + x
Step-by-step explanation:
a^b = x
Then,
a^(2b) = a^b*a^b = x* x = x^2
a^(3b) = a^b*a^b*a^b = x*x*x = x^3
2*(a^3b) + (a^2b) + (a^b)
= 2*(x^3) + (x^2) + (x)
= 2*x^3 + x^2 + x
