what is the simplified form of this expression 5x(2x2 to the second power)

Question

10x3
20x2
10x2
100x4

Answer 1

i think its c

Answer 2

Is that 5x[(2x^2)^2]?

Answer 3

It is C if you meant 5*2x^2

Try not to confuse x (the variable) with x (multiplication)

Use
* to multiply
^ for powers