1) 5m^2 - 10mn + 5n^2 = 5(m - n)^22) 20p - 50 - 2p^2 = -2(p + 5)(p - 5)3) -9x^2 - 6x - 1 = -(3x + 1)(3x + 1)
1) 5m^2 - 10mn + 5n^2 = 5(m - n)^2
2) 20p - 50 - 2p^2 = -2(p + 5)(p - 5)
3) -9x^2 - 6x - 1 = -(3x + 1)(3x + 1)