Factor this expression completely. -21x + 28
To factor the expression -21x + 28 completely, we can first factor out the greatest common factor, which is 7:
-21x + 28 = 7(-3x + 4)
Next, we can see that (-3x + 4) does not have any common factors that can be factored out further. Therefore, the completely factored expression is:
-21x + 28 = 7(-3x + 4)
To factor the expression -21x + 28 completely, you can first look for the greatest common factor (GCF) of the terms -21x and 28. The GCF of -21x and 28 is 7. So, we can factor out a 7 from both terms:
7(-3x + 4)
Now, we have -3x + 4, which cannot be factored further. So, the completely factored expression is:
7(-3x + 4)
To factor the expression -21x + 28, we need to look for the greatest common factor (GCF) of the two terms. In this case, both -21x and 28 are divisible by 7.
Step 1: Find the GCF.
The GCF of -21x and 28 is 7.
Step 2: Divide each term by the GCF.
(-21x + 28) ÷ 7 gives us -3x + 4.
Step 3: Write the factored expression.
The factored form of -21x + 28 is 7(-3x + 4).