No.
No.
9xy(3xy - 4)
(a + x^2)(b + y^2)
6xyz(3x + 2y + z)
No.
No.
The GCF is 4.
The GCF is 7mn.
9xy(3xy - 4)
(5x - 2y)(5x + 2y)
(a+b)(a squared-ab+b squared)
52 is not a factor of 325. 5 squared is a factor of 325.
(x)(x)
(a + x^2)(b + y^2)
6xyz(3x + 2y + z)
(4x - 7y)(4x + 7y)