Answer:
for completing the square it would be

however if you were to find the roots it would
be

however the picture is unclear on what to do so these may help
21x 3 times 7 would give you 21 and then add the x
Answer: B) 5/12
Step-by-step explanation:
5/6 divided by 2 is the same as 5/6 x 1/2
Answer:
A
Step-by-step explanation:
you will get 3(x-1)×(x+1) you can get the 3 and x by itself then it would be x+3
Answer: 6
Step-by-step explanation: By checking the factors of both numbers, you see that 6 is their greatest common factor.
30: 1, 2, 3, 5, 6, 10, 15, 30
42: 1, 2, 3, 6, 7, 14, 21, 42
Hope this helps!