3x² + 4xy - 4x(x + y)3x² + 4xy - 4x² - 4xy
(c - 1)(4 + c)4c + c^2 - 4 - cc^2 + 3c - 4
(3x - y)(5y + 2x)15xy + 6x² - 5y² - 2xy6x² + 13xy - 5y²
30p + 25p²5p(6 + 5p)
2(m + 3) - m(m + 3)2m + 6 - m² - 3m-m² - m + 6
3x² + 4xy - 4x(x + y)
x²3x² + 4xy - 4x² - 4xy
(c - 1)(4 + c)
4c + c^2 - 4 - c
c^2 + 3c - 4
(3x - y)(5y + 2x)
15xy + 6x² - 5y² - 2xy
6x² + 13xy - 5y²
30p + 25p²
5p(6 + 5p)
2(m + 3) - m(m + 3)
2m + 6 - m² - 3m
-m² - m + 6