What is the value of the expression when a = –4 and b = 5?
(a+2b)^3 + 3a^2

A.
–952

B.
168

C.
–348

D.
264
@lacrosseplayer22 @Dscdago

Question

What is the value of the expression when a = –4 and b = 5?
(a+2b)^3 + 3a^2

 A. 
 –952   
   

 

 
  

  B. 
  168   
   

 

 
  

  C. 
 –348   
   

 

 
  

  D. 
  264  
@lacrosseplayer22 @Dscdago

anonymous · Answer

OO. Gurl. did you substitute the numbers in for the variables?

anonymous · Answer

no .-. I just did a huge problem kinda like this but im stuck all over again

anonymous · Answer

Substitute the numbers. So it looks like (-4+2(5))^3+3(-4)^2

anonymous · Answer

simply plug in a--4 b=5

you will get result i.e.264

anonymous · Answer

see it below how to do...

anonymous · Answer

so D?

anonymous · Answer

$$(-4+2(5))^3+3(-2)^2$$

anonymous · Answer

Correct. D it is.

anonymous · Answer

(-4+5*2)^3+3(-4)^2=(-4+10)^3+3(16)=6^3+48=216+48=264