To factor the expression \(xy + 8y - 3x - 24\), we can use the method of grouping. First, we group the terms in pairs and factor out the common factors from each pair. Then, we look for a common binomial factor in the resulting expression.
Step 1: Group the Terms
To factor the expression \(xy + 8y - 3x - 24\), we start by grouping the terms in pairs:
\[
(xy - 3x) + (8y - 24)
\]
Step 2: Factor Out the Common Factors
Next, we factor out the common factors from each pair:
From the first pair \(xy - 3x\), factor out \(x\):
\[
x(y - 3)
\]
From the second pair \(8y - 24\), factor out \(8\):
\[
8(y - 3)
\]
Step 3: Identify the Common Binomial Factor
Now, we observe that both terms have a common binomial factor \((y - 3)\):
\[
x(y - 3) + 8(y - 3)
\]
Step 4: Factor Out the Common Binomial
Factor out the common binomial \((y - 3)\):
\[
(x + 8)(y - 3)
\]