Factor 8a - 28 isong GCF

Answer 1

To factor the expression $8a-28$ using the greatest common factor (GCF), we first identify the GCF of the coefficients of the terms.

The coefficients are 8 and -28. The GCF of 8 and 28 is 4.

Now, we can factor out the GCF (4) from the expression:

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

Thus, the factored form of $8a-28$ is:

$$4(2a-7)$$