1) 3x^2 + 12xу + 12у^2 = 3(x^2 + 4xy + 4y^2) = 3(x + 2y)^22) 8a(b-3) + c(3-b) = 8ab - 24a + 3c - bc = 8a(b - 3) - c(b - 3) = (8a - c)(b - 3)3) x^2 + 3x - 2xy - 6y = x^2 + 3x - 2y(x + 3) = (x + 3)(x - 2y)
1) 3x^2 + 12xу + 12у^2 = 3(x^2 + 4xy + 4y^2) = 3(x + 2y)^2
2) 8a(b-3) + c(3-b) = 8ab - 24a + 3c - bc = 8a(b - 3) - c(b - 3) = (8a - c)(b - 3)
3) x^2 + 3x - 2xy - 6y = x^2 + 3x - 2y(x + 3) = (x + 3)(x - 2y)