Posted by Mae on Thursday, October 9, 2008 at 10:19pm.
hi, could someone please explain how to factor this?
3x^22xyy^2

Gr.11 Factoring  DrBob222, Thursday, October 9, 2008 at 10:46pm
Start with the parentheses.
( )( )
The only way we can obtain 3x^2 is with 3x and x so put those in first. The only way we can get the last term is y and y so put those in next. The only way we can get a  term for the y^2 to to have one sign with the parentheses + and the other . Just place them so the middle term is 2xy.
(3x+y)(xy). User the FOIL method to check it. 3x^2 3xy + xy y^2 =
3x^22xyy^2
Check my work.

Gr.11 Factoring  Mae, Thursday, October 9, 2008 at 11:24pm
thanks so much! i finally understand it
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