1. ac - bc + ad - bd 2. xy - 3x - 8y + 24 3. 4x2 + 20x + 5y +xy 4. 48x2y + 20xz +12xy + 5z

Question:can some one answer these problems for me please!!

Answers:
This is all distributive property:

1) c(a-b)+d(a-b)=(c+d)(a-b)
2) x(y-3)+8(y-3) = (y-3)(x+8)
3) 4x(x+5)+y(x+5) = (4x+y)(x+5)
4) 12xy(4x+1) +5z(4x+1) = (12xy+5z)(4x+1)
1.ac-bc+ad-bd
=ac+ad-(bc+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)

send me third question properly

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