Answer: D. 12h + 21h2
Step-by-step explanation: The answer is D,
because when you devide 12h/3h = 4
and for the other value 21h2/3h=7h
4 + 7h
if you perform the same operation with the rest of answers you will get a minor values if you compare with this results, because of that the answer with the greatest common factor is D.
Answer:
(
3
x
+
1
)
(
x
+
3
) is the factorised form for the expression.
-12x+21
-3 x 4 = 12
-3 x -7 = 21
