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Which technique(s) are appropriate to completely factor the expression? A) Factor as a difference of squares. B) Factor out the greatest common factor. C) Factor out the greatest common factor; then factor the difference of squares. D) Factor out the greatest common factor; then factor the perfect square trinomial​

User Natsfan
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Answer:

The greatest common factor (GCF) is the greatest factor that is common to two or more numbers (they share it). The greatest common factor of two (or more) numbers is the product of all the prime factors the numbers have in common.

Step-by-step explanation:

User Evilhomer
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