what factoring method would be the best choice to use for the given expressions? match the best factoring method to use for each expressions. all method can only be used once.
A x^ - 6x + 9 1: perfect Square
trinomial pattern
B 4x^2 - 121 2: Difference of
square pattern
C x^2 - 6x + 15 3: Backwards
distribution [GCF]
D 4x^2 - 10 4: trial and Error
method