## Algebra 1: Common Core (15th Edition)

$x^{7}$
You have the expression $x^{3}$ $\times$ $x^{4}$ and have to simplify it: $x^{3}$ $\times$ $x^{4}$=$x^{3+4}$ -to multiply powers with the same base add the exponents- =$x^{7}$