Final answer:
The expression 64x + 48 is factored using the Greatest Common Factor (GCF) by extracting 16, resulting in the factored form of 16(4x + 3).
Step-by-step explanation:
To use the Greatest Common Factor (GCF) to factor the expression 64x + 48, first, we need to determine the GCF of 64 and 48. Since both numbers have 16 as a common factor (64 is 4 times 16, and 48 is 3 times 16), we can factor out 16 from the expression. Therefore, the factored form of 64x + 48 using the GCF is 16(4x + 3).