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10
Suppose you want to factor the quadratic trinomial ax²+bx+c. How will you know if you need to use AC Factoring?
A) If a = 1 and b² - 4ac > 0
B If a 1 and a is not the GCF of a, b, and c.
It doesn't matter, really. You can use any factoring method any time you feel like it.
DIf a # 1, but a is the GCF of a, b, and c.