Final answer:
The expression that is equivalent to 32x + 24 using the greatest common factor is A. 4(8x + 6).
Step-by-step explanation:
To find the expression that is equivalent to 32x + 24 using the greatest common factor, we need to factor out the greatest common factor of 32 and 24. The greatest common factor of 32 and 24 is 8, so we can rewrite 32x + 24 as 8(4x + 3). Therefore, the equivalent expression is A. 4(8x + 6).