It probably gos like this here's my answer for number 1 6/8 and 9/12. for number 3, 10/12 and 15/18.
Use: (a + b)(c + d) = ac + ad + bc + bd

Answer:
d. x² + 6x +8
Answer:
No solution
Step-by-step explanation:
Because ;
R+74=R-74
R-R=-74-74 —> 0= -148
Or R-R=74+74 —> 0=148
I hope I helped you^_^