Answer:
Step-by-step explanation:

b.
an=an-1+3
C.
when x=15
y=3×15-2=45-2=43
a15=43
 
        
                    
             
        
        
        
Answer:
what to do here I don't know sorry 
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I'm going to make some assumptions here: 
That your sqrt8x= sqrt4+2x means √(8x) = √(4+2x). (There are other interpretations.)
Squaring both sides, 8x = 4 + 2x, or 6x = 4, or x = 4/6, or x = 2/3.
 
        
             
        
        
        
Answer:
what is the question ? but i dont know ans
 
        
             
        
        
        
Answer:
no
Step-by-step explanation: