Factor this expression completely.−21x+28 (1 point)
The expression −21x+28 can be factored as follows:
−21x+28 = 7(-3x+4)
So, the factored expression is 7(-3x+4).
To factor the expression −21x+28 completely, we can first factor out the greatest common factor (GCF) of the coefficients, which is 7.
So, we have:
−21x + 28 = 7(-3x + 4)
Next, we can factor out the GCF of the remaining terms, which is (-3x + 4).
So, the completely factored expression is:
−21x + 28 = 7(-3x + 4)
To factor the expression −21x+28 completely, we can start by looking for common factors that can be factored out.
In this case, we can see that both terms −21x and +28 have a common factor of 7.
So, we can rewrite the expression as follows:
−21x+28 = 7(−3x+4)
Now, the expression is partially factored, but we can simplify it further.
Inside the parentheses, we have −3x+4, which cannot be factored any further since there are no common factors between the terms.
Therefore, the completely factored form of −21x+28 is 7(−3x+4).