Factor 8a -28 using the GCF

Answer 1

To factor out the greatest common factor (GCF) from the expression 8a - 28, you need to find the largest number or expression that can divide evenly into both terms.

The GCF of 8a and 28 is 4 because it is the largest number that can divide evenly into both 8 and 28.

Now, you can rewrite the expression as follows:

8a - 28 = 4(2a - 7)

Therefore, the factored form of 8a - 28 using the GCF is 4(2a - 7).