### Home > CCA > Chapter 3 > Lesson 3.1.1 > Problem 3-7

3-7.

Gerardo is simplifying expressions with very large exponents. He arrives at each of the results below. For each

⇒ *x*^{3}Remember to subtract the exponents when dividing terms with like bases.

Not correct, the answer should be

*x*^{100}. Make sure you are able to justify your answer.If you multiply 20

*y*'s together, and then multiply another 41 to the original 20, how many*y*'s are you multiplying together?*y*^{61}. Make sure you are able to justify your answer.Write down the expression inside the parentheses three times and then simplify as you did in part (b).