Distributive Property? (2x+6)2y+3y?
回答 (6)
2008-08-25 4:25 pm
✔ 最佳答案
(2x+6)2y+3y4xy + 12y + 3y
4xy + 15y
參考: I took Pre-Calc Math last school year.
2008-08-25 11:41 pm
2y(2x + 6) + 3y
= 2y*2x + 2y*6 + 3y
= 4xy + 12y + 3y
= 4xy + 15y
= y(4x + 15)
= 2y*2x + 2y*6 + 3y
= 4xy + 12y + 3y
= 4xy + 15y
= y(4x + 15)
2008-08-25 11:36 pm
4xy + 12y + 3y
4xy + 15y
4xy + 15y
2008-08-25 11:29 pm
Let's think of the problem as :
3y+2y ( 2x+6) <--- I know that we can do this because addition is commutative
so:
3y+ 4xy+12y
*combine like terms:
15y+ 4xy
3y+2y ( 2x+6) <--- I know that we can do this because addition is commutative
so:
3y+ 4xy+12y
*combine like terms:
15y+ 4xy
2008-08-25 11:10 pm
2x * 2y + 6*2y + 3y
4xy + 12y + 3y
4xy + 15y
4xy + 12y + 3y
4xy + 15y
2008-08-25 11:10 pm
(2x+6)2y+3y
4xy + 12y + 3y
4xy + 15y <--- answer
4xy + 12y + 3y
4xy + 15y <--- answer
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