To multiply the polynomial \((b + 8)(3b - 6)\), use the distributive property (also known as the FOIL method for binomials):
-
First: Multiply the first terms:
\(b \cdot 3b = 3b^2\) -
Outer: Multiply the outer terms:
\(b \cdot (-6) = -6b\) -
Inner: Multiply the inner terms:
\(8 \cdot 3b = 24b\) -
Last: Multiply the last terms:
\(8 \cdot (-6) = -48\)
Now, combine all the results:
\[3b^2 - 6b + 24b - 48\]
Combine the like terms:
\[-6b + 24b = 18b\]
So, the simplified expression is:
\[\boxed{3b^2 + 18b - 48}\]