giving medals and fanning please help

What are the solutions to the equation x2 + 4 = 148?

A.
–4 and 4

B.
–12 and 12

C.
–2 and 2

D.
–11 and 11

Question

giving medals and fanning please help

What are the solutions to the equation x2 + 4 = 148?
 
 A.
–4 and 4
 
 B.
–12 and 12
 
 C.
–2 and 2
 
 D.
–11 and 11

anonymous · Answer

First step is to rearrange the equation, getting everything on one side 

x^2 - 144 = 0 

At this point it's pretty clear what to do 

Difference of Perfect Squares 

(x+12)(x-12) = 0 

(x+12) = 0, (x-12) = 0 

x = -12, 12  
B

anonymous · Answer

thank you so much god bless :)