## College Algebra (11th Edition)

$32$
$\bf{\text{Solution Outline:}}$ Use the order of operations (PEMDAS - Parenthesis, Exponents, Multiplication/Division, Addition/Subtraction) to simplify the given expression, $(-4-1)(-3-5)-2^3 .$ $\bf{\text{Solution Details:}}$ Simplifying the expression/s in parenthesis, the entire expression above becomes \begin{array}{l}\require{cancel} (-5)(-8)-2^3 .\end{array} Simplifying the exponents, the expression above becomes \begin{array}{l}\require{cancel} (-5)(-8)-8 .\end{array} Simplifying the product/quotient, the expression above becomes \begin{array}{l}\require{cancel} 40-8 .\end{array} Simplifying the sum/difference, the expression above becomes \begin{array}{l}\require{cancel} 32 .\end{array}