joshmerz13 joshmerz13 07-08-2017 Mathematics contestada can someone help me with this factoring problem? I forgot how to factor. Factor completely −3x2 + 6x − 9. −3(x2 − 2x + 3) −1(x2 − 6x + 9) −3x(x2 − 2x + 3) −3(x2 + 2x − 3)