What is the common factor of p2q2, p2q2r2 and 3p2q2r2?
3pqr
pq
p2q2
C.
p2q2
What is the common factor of 2(x2y - xy2) and 8 (x4y2 - x2y4) ?
2xy
2x2y2
2(x - y)
What is the common factor of 2xy, 3pqr and 4lmn?
0
1
12
Factors of 1 - x2
(1 - x) (1 - x)
(1 - x) (1 + x)
(1 + x) (1 + x)
What is the common factor of 14x2y and 21xy2?
7
xy
7xy