Question

what is each expression written using each base only once?Please help! I don't understand this. I need the answers to all parts for number 2

Answer 1

To solve these problems, we just have to add the exponents

`\begin{gathered} (7.57)^(-5)(7.57)^5=(7.57)^(-5+5)=(7.57)^0=1 \\ x^3x^7=x^(3+7)=x^(10) \\ (-5)^5(-5)^6=(-5)^(5+6)=(-5)^(11) \end{gathered}`