simplify and justify this expression?

2 ⤊

-2x (4+5y) - 5x + 2y

2007-09-18 10:00:42 · 2 answers · asked by drakehardacre 1 in Science & Mathematics ➔ Mathematics

- 8x - 10 x y - 5 x + 2 y
- 13 x + 2 y - 10 x y

2007-09-21 20:11:45 · answer #1 · answered by Como 7 · 2⤊ 0⤋

-2x (4+5y) - 5x + 2y

.distribute the parenthesis using multiplication:
-8x -10xy -5x +2y

.combine like terms:
-3x -10xy +2y

Hope this helped.

2007-09-18 10:19:46 · answer #2 · answered by Stevie B 2 · 0⤊ 0⤋