Jawabanmu

2014-09-09T18:31:03+07:00
20y+4y^2-12y^3-35-7y+21y^2
-12y^3+25y^2+13y-35
1 2 1
2014-09-09T18:36:49+07:00
(4y-7)(5+y-3y²) = 20y - 4y² - 12y^3 - 35 - 7y + 21y²
= 20y² + 17y² - 12y^3 - 7y - 35
maaf klw slah