Simple,
you have

This really means that you have...

just cancel out the x's that you have, it's simple...
leaving you

Thus, your answer.
1. The answer is already in its simplest form.
3. 3i + i is equal to 4i.
5. Combining like terms results in -5 - 9i.
The total of all angles of a heptagon is 900.
Therefore
x+125+119+117+145+133+140 = 900
x+779 =900
x= 900-779
x =121 degrees
Answer:
Step-by-step explanation:
The answer is 284 hope this helps.
Answer:
15x^2 + 14x - 8
Step-by-step explanation: