Posted by jacky on Saturday, October 31, 2009 at 11:24am.
what is (1+2y)(3+5y)

high school math  jim, Saturday, October 31, 2009 at 1:11pm
I presume you want to multiply it out?
(1+2y)(3+5y)
= 1 * (3+5y) + 2y * (3+5y)
= 3 + 5y + 6y * 10y^2
and you can finish