Please Help Me Too Answer This Quistion!

PLEASE HELP ME TOO ANSWER THIS QUISTION!

 

Answer:

2. Long form : (x • x • x • x •x) • ( x•x•x•x•) result : x

3. Exponential form : 3⁵ result : 243

4. Long form : (2•2•2•2) • (2•2•2•2•2) exponential form : 2⁹