Question 243726
{{{pi*ab-pi*ac}}} Start with the given expression.



{{{pi*a(b-c)}}} Factor out the GCF {{{pi*a}}}



So {{{pi*ab-pi*ac}}} factors to {{{pi*a(b-c)}}}. 



In other words, {{{pi*ab-pi*ac=pi*a(b-c)}}}