Question

factor común compuesto de:
ac + ad + bc + bd =
ax - ay + bx - by + cx -cy=
3+ 15z + 4y + 20 yz =
aq - ar + bq - br =
2ax + 2 bx - ay - by - az - bz =

Answer 1

*ac + ad + bc + bd
a (c + d) + b (c + d)
(a + b) (c + d)

*ax - ay + bx - by + cx - Cy
a (x - y) + b (x - y) + c (x - y)
(a + b + c) (x - y)

*3+ 15z + 4y + 20 yz
3 (1 + 5z) + 4y (1 + 5z)
(3 + 4y) (1 + 5z)

*aq - ar + bq - br
a (q - r) + b (q - r)
(a + b) (q - r)

*2ax + 2 bx - ay - by - az - bz
2x (a + b) - y (a + b) - z (a + b)
(2x - y - z) (a + b)

suerte ;)