SOLUTION: This problem asks me to factor by grouping. Problem: 5xy+25x-2y-10 What does it mean by grouping?

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Question 243349: This problem asks me to factor by grouping.
Problem: 5xy+25x-2y-10
What does it mean by grouping?
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
5xy+25x-2y-10
.
Grouping means to "collect" terms together so you can factor this smaller group.
.
(5xy+25x)-2y-10
= (5xy+25x)-(2y+10)
= 5x(y+5)- 2(y+5)
Next, factor out (y+5):
= (y+5)(5x- 2)