Answer:
The answer to your question is x = 15
Step-by-step explanation:
Use proportions to solve this problem

Solve for "x"
x = 
Simplification
x = 
Result
x = 15
There are two coefficients, 11 for r and 7 for s
See the attached image for solution:
The polynomial x3+8 is equal to (x+2)(x2-2x+4)
Answer:
Step-by-step explanation:
-0.25
-1/3
1/4
0.3