# How do you find the product 10^4*10^3?

Use this rule for exponents: ${x}^{\textcolor{red}{a}} \cdot {x}^{\textcolor{b l u e}{b}} = {x}^{\textcolor{red}{a} + \textcolor{b l u e}{b}}$
${10}^{\textcolor{red}{4}} \cdot {10}^{\textcolor{b l u e}{3}} = {10}^{\textcolor{red}{4} + \textcolor{b l u e}{3}} = {10}^{7} = 100 , 000 , 000$