Question 70541
Find the GCF of each product. (6y^2 - 3y)(y + 7) 

{{{(6y^2-3y)*(y+7)}}}
{{{3y(y-1)*(y+7)}}}
The GCF is 3y
If you don't understand it that way, FOIL the parentheses and take out the GCF:
{{{6y^2(y+7)-3y(y+7)}}}
{{{6y^3+42y^2-3y^2-21y}}}
{{{6y^3+39y^2-21y}}}
{{{3y(2y^2)+3y(13y)+3y(-7)}}}
{{{3y(2y^2+13y-7)}}}
It's a little more work, but....
The GCF is still 3y
Happy Calculating!!!