Answer:
3 because 3 x 2 + 3 x 8 = 30 and 3(2+8)=30
Answer:
x = 2 + 5i√2 / 6 and x = 2 - 5i√2 / 6
Step-by-step explanation:
If this isn't right, I'm sorry. Also, you can put x = 2 ± 5i√2 /6 to make it shorter and not have two answers. Hope this helps :)
To find the answer to this question you would just add 10 to 70 and multiply by 4 and your answer would be 320