# How do you simplify (-bc^5)(a^4b^3c^9)(-ab^8)?

${a}^{5} {b}^{12} {c}^{14}$
$b {c}^{5} {a}^{4} {b}^{3} {c}^{9} a {b}^{8} = {a}^{5} {b}^{12} {c}^{14}$