This question is unsolvable this might be a trick question but it is not solvable. Hope this helps! ;D
        
             
        
        
        
Answer:
The current price of the unit trust =  £13,831.72 
Step-by-step explanation:
Since it increased 7% per annum in last three years and decreased by 3% per annum before that, it implies that the unit trust decreased by 3% per annum for the first 2 years and then increased by 7% per annum for the next 3 years in the total 5 year period
The invested after 2 years = 12,000*(1-0.03)^2 = £11,290.8
This amount then grows by 7% for the next 3 years making it = 11,290.80*(1+0.07)^3 =  £13,831.7155 = £13,831.72 (Rounded to 2 decimals) 
The current price of the unit trust =  £13,831.72 (Rounded to 2 decimals) 
 
        
             
        
        
        
12 is the answer. 
The sequence is 12, 6, 3, 3/2
        
             
        
        
        
A is the answer to your question
        
             
        
        
        
Answer:
f(x + h) = 3x³ + x² + 9h²x + 3h³ + h² + 9hx² + 2hx
General Formulas and Concepts:
- Order of Operations: BPEMDAS
- Distributive Property
- Expand by FOIL (First Outside Inside Last)
- Combining like terms
Step-by-step explanation:
<u>Step 1: Define function</u>
f(x) = x² + 3x³
f(x + h) is x = x + h
<u>Step 2: Simplify</u>
- Substitute:                              f(x + h) = (x + h)² + 3(x + h)³
- Expand by FOILing:               f(x + h) = (x² + 2hx + h²) + 3(x + h)³
- Rewrite:                                  f(x + h) = (x² + 2hx + h²) + 3(x + h)²(x + h)
- Expand by FOILing:               f(x + h) = (x²+2hx+h²) + 3(x² + 2hx + h²)(x+h)
- Distribute/Expand:                 f(x + h) = (x²+2hx+h²) + 3(x³+3hx²+3h²x+h³)
- Distribute 3:                            f(x + h) = (x²+2hx+h²)+(3x³+9hx²+9h²x+3h³)
- Combine like terms:               f(x + h) = 3x³+x²+9h²x+3h³+h²+9hx²+2hx