(x+2) + 3(x+2)
x+2+3x+6
.. ( collect like terms )
= 4x+2+6 
= 4x + 8 is your answer
        
             
        
        
        
Answer:
f( )=2x+1
)=2x+1
Step-by-step explanation:
given f(x)=-4x+1................(1)
x= put in equ (1)
  put in equ (1)
f(x)=-4x+1
 f( )  =-4(
 )  =-4( )+1
)+1
  f( )=2x+1 answer
)=2x+1 answer
 
        
             
        
        
        
WE KNOW THAT THE VOLUME OF THE CUBE IS '
V=a^3
our a=7
V=343 cm^3
        
             
        
        
        
Answer:
The third one!
Step-by-step explanation: