1. ac - bc + ad - bd
2. xy - 3x - 8y + 24
3. 4x2 + 20x + 5y +xy
4. 48x2y + 20xz +12xy + 5z
2007-06-07 07:26:01 · 4 answers · asked by stripedbutsolidband 1 in Science & Mathematics ➔ Mathematics
1. ac - bc + ad - bd
a(c+d) - b(c+d)
(a - b)(c+d)
2. xy - 3x - 8y + 24
x(y - 3) - 8(y-3)
(x - 8)(y - 3)
3. 4x² + 20x + 5y +xy
4x(x + 5) + y(x + 5)
(4x + y)(x + 5)
4. 48x²y + 20xz +12xy + 5z
12xy(4x + 1) + 5z(4x + 1)
(12xy + 5z)(4x + 1)
2007-06-07 07:30:15 · answer #1 · answered by MamaMia © 7 · 0⤊ 0⤋
1. ac - bc + ad - bd
c(a-b) + d(a-b)
(a-b)(c+d)
2. xy - 3x - 8y + 24
x(y-3) -8(y-3)
(y-3)(x-8)
3. 4x2 + 20x + 5y +xy
4x(x+5) +y(x+5)
(x+5)(4x+y)
4. 48x2y + 20xz +12xy + 5z
2007-06-07 07:33:40 · answer #2 · answered by sweet n simple 5 · 0⤊ 0⤋
So group already. There is more than one answer for each problem. Pick the one you like. For example in 2, you can factor by x and by -8 to get
x(y-3) - 8 (y-3), and then (y-3)(x-8)
2007-06-07 07:34:35 · answer #3 · answered by cattbarf 7 · 0⤊ 0⤋
neverheardof "facorting"
2007-06-07 07:37:09 · answer #4 · answered by Anonymous · 0⤊ 0⤋