Simplify
1.) -3(-x + 6y) - (-10y + 2x - 4)
A. x - 8y - 4
B. - x - 8y + 4
C. x - 8y + 4
2.) -2[4(3x-5y)- 3 to the second power]
A. 24x + 40y + 18
B. - 24x + 40y + 18
C. - 24x - 40y + 18
2007-04-15 07:48:32 · 5 answers · asked by meee! 1 in Science & Mathematics ➔ Mathematics
- 3( - x + 6y) - (- 10y + 2x - 4) =
3x - 18y + 10y - 2x + 4 =
3x - 2x - 18y + 10y + 4 =
x - 8y + 4
- - - - - - - -s-
I assume the brackes is next to - 3²]
-2[4(3x - 5y) - 3²] =
- 2[12x - 20y - 9] =
- 24x + 40y + 18
2007-04-15 08:59:53 · answer #1 · answered by SAMUEL D 7 · 0⤊ 0⤋
1) x -8y +4 C
2) -24x + 40y + 18 B
2007-04-15 14:56:35 · answer #2 · answered by Amy F 5 · 0⤊ 0⤋
always combine like terms!!!
so:
1) 3x - 18 y + 10y -2x + 4 = x - 8y + 4
2) -2[12x -20y - 9] = -24x + 40y + 18
2007-04-15 14:54:57 · answer #3 · answered by Ana 4 · 0⤊ 1⤋
1)c
2)b
2007-04-15 14:54:29 · answer #4 · answered by Anonymous · 0⤊ 0⤋
are you stupid, its ******** pre algebra
2007-04-15 15:25:48 · answer #5 · answered by Anonymous · 0⤊ 1⤋