Answer:
7(4x +3)
Step-by-step explanation:
To factor the polynomial (28x + 21) we need to find the highest number that can be taken out of 28 and 21. In this case it is 7.
28 divided by 7 = 4
21 divided by 7 = 3
Since you now have the numbers, place x in the correct position, which is next to the 4.
Your answer is 7(4x +3)
Hope this helps!
