## Elementary Algebra

0.28$x^{8}$
(0.4$x^{5}$)(0.7$x^{3}$) = Use the exponent rule to simplify: $b^{n}$ $b^{m}$ = $b^{m+n}$ 0.4 $\times$ 0.7 $\times$ $x^{5 + 3}$ = 0.28 $\times$ $x^{8}$ = 0.28$x^{8}$