Question 25396
You need to begin by listing all the factors of 20 and factors of 10
20 = 2,10; 4,5; 1,20
10 = 2.5; 1,10
You also know both of the gourps are going to be -, because the last sign is + and the second sign s -;
So just play around with the different factors to see what fits;
I've all ready done that for you and found;
(4y-5)(5y-2)
Hope you understand
=)